Skip to main content

Abstract

Cassava, Manihot esculenta (Euphorbiaceae), also known as tapioca, yuca, mandioca or manioc, was domesticated during 4000-2000 B.C. in South America and reportedly originated in Brazil (Abraham, 1956; Karakacha, 2001). The Portuguese took cassava to the Gulf of Guinea in Africa in the 16th century (Fauquet and Fargette, 1990). By the 18th century, the crop had reached the East Coast of Africa, Madagascar, Reunion and Zanzibar. After the mid-18th century, it reached India and Ceylon (now Sri Lanka). Another theory is that cassava was directly introduced from South America into India in 1840 (Abraham, 1956). By the 20th century, cassava was grown throughout much of sub-Saharan Africa. However it remained as a subsistence crop until the 1920s/1930s when it became the major staple food crop of Africa (Carter et al. 1992). Currently the crop is grown in more than 39 African and 56 other countries.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 219.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  • Abdullahi, I., Atiri, G., Winter, S., and Thottappilly, G. 1998. Differentiation of whitefly (Bemisia tabaci) biotypes from different regions in Africa and their relation to the occurrence of cassava mosaic geminiviruses (in German). Mittl. Biolog. Bundesan. Braunschweig 357: 284.

    Google Scholar 

  • Abdullahi, I., Atiri, G.I., Dixon, A.G.O., Winter, S., and Thottappilly, G. 2003a. Effects of cassava genotype, climate and the Bemisia tabaci vector population on the development of African cassava mosaic geminivirus (ACMV). Acta Agronom. Hungarica 51(1): 37–46.

    Google Scholar 

  • Abdullahi, I., Winter, S., Atiri, G., and Thottappilly, G. 2003b. Molecular characterization of whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae) populations infesting cassava. Bull. Entomol. Research 93: 97–106.

    Google Scholar 

  • Abraham, A. 1956. Tapioca cultivation in India. Farm Bulletin No. 17. Indian Council of Agricultural Research, New Delhi. 20 pp.

    Google Scholar 

  • Adejare, G.O., and Coutts, R.H.A. 1981. Eradication of cassava mosaic disease from Nigeria cassava clones by meristem-tip culture. Plant Cell Tissue Organ Culture 1: 25–32.

    Google Scholar 

  • Adejare, G.P., and Coutts, R.H.A. 1982. Isolation and characterization of a virus from Nigeria Cassava plants affected by the cassava mosaic disease, and attempted transmission of the disease. Phytopathol. Z. 103: 198–210.

    Google Scholar 

  • Adipala, A., Byabakama, B.A., Ogenga-Latigo, M.W., and Otim-Nape, G.W. 1998. Effect of planting date and varietal resistance on the development of cassava mosaic virus disease in Uganda. African Plant Protection 4: 71–79.

    Google Scholar 

  • Aiton, M.M., and Harrison, B.D. 1988. Cassava Colombian symptomless virus (CCSV), In: Annual Report 1987, p. 192, Scottish Crops Research Institute, Dundee.

    Google Scholar 

  • Aiton, M.M., Lennon, A.M., Roberts, I.M., and Harrison, B.D. 1988a. Two new cassava viruses from Africa. In: Abstracts 5th Inter. Congr. Plant Pathol., Kyoto, p. 43.

    Google Scholar 

  • Aiton, M.M., Roberts, I.M., and Harrison, B.D. 1988b. Cassava common mosaic potexvirus from mosaic-affected cassava in the Ivory Coast. Ann. Rept. 1987, p. 191, Scottish Crop Research Institute, Dundee.

    Google Scholar 

  • Akano, A., Ng, S.Y.C., Asiedu, R., and Atiri, G. 1995. Performance in three agroecologies of virus-tested cassava genotypes derived from meristem culture. In: Proc. sixth Triennial Symp. Intern. Soc. Tropical Root Crops-Africa Branch, M.O. Akoroda and I.J. Ekanayake (eds.), pp. 194–198.

    Google Scholar 

  • Akano, A.O., Atiri, G.I., Ng, S.Y.C., and Asiedu, R. 1997. Effect of African cassava mosaic disease on growth and yield components of virus-tested cassava genotypes derived from meristem culture in early and late planting periods in three agroecologies of Nigeria. African J. Root and Tuber Crops 2: 44–48.

    Google Scholar 

  • Akano, A.O., Dixon, A.G.O., Mba, C., Barrera, E., and Fregene. M. 2002. Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease. Theor. Appl. Genetics 105: 521–525.

    Google Scholar 

  • Alagianagalingam, M.N., and Ramakrishnan, K. 1966. Cassava mosaic in India. South Indian Horticulture 14: 71–72.

    Google Scholar 

  • Angel, J.C., Pineda, B.L., Nolt, B., and Velasco, A.C. 1990. Mosca blancas (Homoptera: Aleyrodidae) asociadas a transmision de virus en yuca. Fitopatol. Colomb. 13: 65–71.

    Google Scholar 

  • Ariyo, O., Dixon, A.G.O., and Atiri, G.I. 2002. The relative resistance of cassava cultivars to African cassava mosaic disease (ACMD) as determined by two methods: Rank-sum and the area under diseased progress curve. Arch. Phytopath. Pflanz. 35: 23–20.

    Google Scholar 

  • Atiri, G.I., Njukeng, A.P., and Ekpo, E.J.A. 2000. Climate in relation to plant virus epidemiology and sustainable disease management in West Africa. J. Sust. Agric. 16: 17–30.

    Google Scholar 

  • Banks, G.K., Colvin, J., Chowda Reddy, R.V., Maruthi, M.N., Muniyappa, V., Venkatesh, H.J., Kiran Kumar, M., Padmaja, A.S., Beitia, F.J., and Seal, S.E. 2001. First report of the Bemisia tabaci B biotype in India and an associated tomato leaf curl virus disease epidemic. Plant Dis. 85: 231.

    Google Scholar 

  • Bellotti, A.C., Bohorquez, A., Arias, B., Mba, C., and Tohme, J. 2001. Host plant resistance for management of cassava pest with emphasis on whiteflies. In: Cassava, An Ancient Crop For Modern Times: Food, health, culture, N.J. Taylor, F. Ogbe and C.M. Fauquet (eds.), pp. S8–02, Donald Danforth Plant Sciences Center, St. Louis, USA.

    Google Scholar 

  • Berrie, L.C., Palmer, K.E, Rybicki, E.P., Hiyadat, S.H., Maxwell, D.P., and Rey, M.E.C. 1997. A new isolate of African cassava mosaic virus in South Africa. African J. Roots and Tuber Crops 2: 49–52.

    Google Scholar 

  • Berrie L.C., Palmer K.E., Rybicki E.P., and Rey M.E.C. 1998. Molecular characterisation of a distinct South African cassava infecting geminivirus. Arch. Virol. 143: 2253–2260.

    Google Scholar 

  • Berrie, L.C., Rybicki, E.P., and Rey, M.E.C. 2001. Complete nucleotide sequence and host range of South African cassava mosaic virus: further evidence for recombination amongst begomoviruses. J. Gen. Virol. 82: 53–58.

    Google Scholar 

  • Berry, S., and Rey, M.E.C. 2001. Differentiation of cassava-infecting begomoviruses using heteroduplex mobility assays. J. Virol. Methods 92: 151–163.

    Google Scholar 

  • Bock, K.R., 1994a. The spread of African cassava mosaic geminiviruses in coastal and western Kenya. Trop. Science 34: 92–101.

    Google Scholar 

  • Bock, K.R. 1994b. Control of African cassava mosaic geminivirus by using virus-free planting material. Trop. Science 34: 102–109.

    Google Scholar 

  • Bock, K.R. 1994c. Studies on cassava brown streak disease in Kenya. Trop. Science 34: 134–145.

    Google Scholar 

  • Bock, K.R., and Harrison, B.D. 1985. African cassava mosaic virus. In: Descriptions of Plant viruses. No. 297. Assoc. Applied Biologists, Wellesborne, Warwick, UK, 6pp.

    Google Scholar 

  • Bock, K.R., and Woods, R.D. 1983. Etiology of African cassava mosaic disease. Plant Dis. 67: 994–995.

    Google Scholar 

  • Bock, K.R., Guthrie, E.J., Meredith, G., and Barker, H. 1977. RNA and protein components of maize streak and cassava latent viruses. Ann. appl. Biol. 85: 305–308.

    Google Scholar 

  • Bock, K.R., Guthrie, E.J., and Meredith, G. 1978. Distribution, host range, properties and purification of cassava latent virus, a geminivirus. Ann. appl. Biol. 90: 361–367

    Google Scholar 

  • Bock, K.R., Guthrie, E. J., and Figueriedo, G. 1981. A strain of cassava latent virus occurring in coastal districts of Kenya. Ann. appl. Biol. 99: 151–159.

    Google Scholar 

  • Bolhuis, G.C. 1949. Waarnemingen ouer de zg mosaiekziekte big cassava op Java. Buitenzoig, Java General Agricultural Research Communication No. 92, 9pp.

    Google Scholar 

  • Briddon, R.W., Liu, S. M.S. Pinner, S.M.S., and Markham, P.G. 1998. Infectivity of African cassava mosaic virus clones to cassava by biolistic inoculation. Arch. Virol. 143: 2487–249.

    Google Scholar 

  • Brunt, A.A. 1990. Cassava brown streak carlavirus. Cassava brown streak potyvirus. In Viruses of Tropical Plants. A. Brunt, K. Crabtree and A. Gibbs (eds.). pp. 157–158, CAB International, Wallingford, UK., 707 pp.

    Google Scholar 

  • Brunt A.A., Crabtree, K., Dallwitz, M.J., Gibbs, A.J., and Watson, L. 1996. Viruses of plants. Descriptions and lists from the vide database. CAB International, Oxon, 1484pp.

    Google Scholar 

  • Bull, S.E., Karakacha, H.W., Briddon, R.W., Nzioki, S., Maruthi, M.N., Stanley, J. and Winter, S. 2003. Occurrence of East African cassava mosaic Zanzibar virus (EACMVZV) in coastal Kenya. New Disease Reports, British Society of Plant Pathology, Vol. 7. http://www.bspp.org.uk/ndr/July

  • Burban, C., Fishpool, L.D.C., Fauquet, D., Fargette, D., and Thouvenel, J.-C. 1992. Hostassociated biotypes within West African populations of the whitefly Bemisia tabaci (Genn.) (Hom., Aleyrodidae). J. appl. Entomol. 113: 416–423.

    Google Scholar 

  • Calvert, L.A. 1994. The safe movement of cassava germplasm. In: International network for cassava genetic resources. Report of the first meeting of the International Network for Cassava Genetic Resources, held at Cali, Colombia, 18-23 August, 1992. International Plant Genetic Resources Institute, Rome. (International crop network series 10). pp. 163–165.

    Google Scholar 

  • Calvert, L., and Thresh, J.M. (2002) The viruses and virus diseases of cassava. In: Cassava: Biology, Production and Utilization. R.J. Hillocks, J.M. Thresh and A. Bellotti (eds.), pp. 237–260, CAB International, Wallingford, UK.

    Chapter  Google Scholar 

  • Calvert, L.A., Ospino, M.D., and Shepherd, R.J. 1995. Characterization of cassava vein mosaic virus: a distinct plant pararetrovirus. J. Gen. Virol. 76: 1271–1278.

    Google Scholar 

  • Calvert, L.A., Cuervo, M., Ospina, M.D., Fauquet, C., and Ramirez, B.C. 1996. Characterization of cassava common mosaic virus and a defective RNA species. J. Gen. Virol. 77, 525–530.

    Google Scholar 

  • Carter, S.E., Fresco, L.O., and Jones, P.G. 1992. An atlas of cassava in Africa: historical, agroecological and demographic aspects of crop distribution: Centro Internacional de Agricultura e Tropical (CIAT), Cali, Colombia, 86pp.

    Google Scholar 

  • Chant, S.R. 1958. Studies on the transmission of cassava mosaic virus by Bemisia spp (Aleyrodidae). Ann. appl. Biol. 46: 210–215.

    Google Scholar 

  • Chant, S.R. 1959. A note on the inactivation of mosaic virus in cassava (Manihot utilissima Pohl.) by heat treatment. Emp. J. Exp. Agric. 27: 55–58.

    Google Scholar 

  • Chaparro-Martinez, E.I., and Trujillo-Pinto, G. 2001. First report on cassava virus x in cassava inVenezula. Plant Dis. 85: 1119.

    Google Scholar 

  • Chen, C.T., Ko, N.J., and Chen, M.J. 1981. Electron microscopy of cassava common mosaic in Taiwan. Rep. Taiwan Sugar Res. Insp. 93: 20–27.

    Google Scholar 

  • Colvin, J., Fishpool, L.D.C., Fargette, D., Sherington, J., and Fauquet, C. 1998. Bemisia tabaci (Hemiptera: Aleyrodidae) trap catches in a cassava field in Côte d’Ivoire in relation to environmental factors and the distribution of the African cassava mosaic disease. Bull. Entomol. Research 88: 369–378.

    Google Scholar 

  • Costa, A.S. 1940. Observacoes sobre o mosaico comum e o mosaico das nervuras da mandioca (Manihot utilissima Pohl.). J. Agronomia (Piracicaba) 3: 239–248.

    Google Scholar 

  • Costa, A.S., and Kitajima, E.W. 1972a. Cassava common mosaic virus. In: CMI/AAB Descriptions of Plant Viruses No. 90., Commonwealth Agricultural Bureaux, Slough, 4pp.

    Google Scholar 

  • Costa, A.S., and Kitajima, E.W. 1972b. Studies on virus and mycoplasma diseases of the cassava plant in Brasil. Page 18, In: Proc. Cassava Mosaic Workshop, IITA, Ibadan, Nigeria.

    Google Scholar 

  • Cours, G. 1951. Le Manioc a Madagascar. Memoires de l’Institute Scientifique de Madagascar. Serie B, Biologie Vegetale 3: 203–400.

    Google Scholar 

  • Cours, G., Fargette, D., Otim-Nape, G.W., and Thresh, J.M. 1997. The epidemic of cassava mosaic virus disease in Madagascar in the 1930s–1960s: lessons for the current situation in Uganda. Tropical Science 37: 238–248.

    Google Scholar 

  • Cours-Darne, G. 1968. Improving cassava in Africa. The Abidjan Conference. Agricultural Research Priorities for Economic Development in Africa 2: 330–339.

    Google Scholar 

  • CTCRI, 2000. Tuber crops varieties released by CTCRI. Technical Bulletin Series: 24. Central Tubers Crop Research Institute, Trivandrum, Kerala. 40 pp.

    Google Scholar 

  • CTCRI, 2002a. Annual Report 2000–2001. Central Tubers Crop Research Institute, Trivandrum, Kerala. 167 pp.

    Google Scholar 

  • CTCRI, 2002b. Research Highlights 2001-2002. Central Tuber Crops Research Institute, Trivandrum, Kerala, 26pp.

    Google Scholar 

  • Dasgupta, I., Malathi, V.G., and Mukherjee, S.K. 2003. Genetic engineering for virus resistance. Current Science, 84: 341–354.

    Google Scholar 

  • Deng, D., McGrath, D.F., Robinson, D.J., and Harrison, B.D. 1994. Detection and differentiation of whitefly-transmitted geminiviruses in plants and vector insects by the polymerase chain reaction with degenerate primers. Ann. appl. Biol. 125: 327–336.

    Google Scholar 

  • Deng, D., Otim-Nape, G.W., Sangare, A., Ogwal, S., Beachy, R.N., and Fauquet, C.M. 1997. Presence of a new virus closely related to East African cassava mosaic geminivirus associated with cassava mosaic outbreak in Uganda. Afric. J. Root Tuber Crops 2: 23–28.

    Google Scholar 

  • Dixon, A.G.O., Whyte, J.B.A., Mahungu, N.M., and Ng, S.Y.C. 2001. Tackling the cassava mosaic disease (CMD) challenge in sub-saharan Africa: The role of host-plant resistance and germplasm deployment. In: Cassava, an ancient crop for modern times: Food, health, culture, N.J. Taylor, F. Ogbe and C.M. Fauquet (eds.). pp. S8–05, Donald Danforth Plant Sciences Center, St. Louis, USA.

    Google Scholar 

  • Dubern, J. 1994. Transmission of African cassava mosaic geminivirus by the whitefly (Bemisia tabaci). Trop. Science 34: 82–91.

    Google Scholar 

  • Edison, S. 2000. Tuber crops-scope for value addition. In: The Hindu Survey of Indian agriculture 2000, pp. 77–82, Hindu, Chennai, India.

    Google Scholar 

  • Edison, S. 2002. Tuber crops: Energy and nutritional storehouses. In: The Hindu Survey of Indian agriculture 2002, pp. 81–86, Hindu, Chennai, India.

    Google Scholar 

  • Etessami, P., Watts, J., and Stanley, J. 1989. Size reversion of African cassava mosaic virus coat protein gene deletion mutants during infection of Nicotiana benthamiana. J. Gen. Virol. 70: 277–289.

    Google Scholar 

  • FAOSTAT, 2001; www.fao.org

    Google Scholar 

  • Fargette, D., and Fauquet, C. 1988. A preliminary study on the influence of intercropping maize and cassava on the spread of African cassava mosaic virus by whiteflies. Aspects Appl. Biol. 17: 195–202.

    Google Scholar 

  • Fargette, D., and Vie, K. 1995. Simulation of the effects of host resistance, reversion and cutting selection on incidence of cassava mosaic virus and yield losses in casava. Phytopathology 85: 370–375.

    Google Scholar 

  • Fargette, D., Fauquet, C., and Thouvenel, J.C. 1985. Field studies on the spread of African cassava mosaic. Ann. appl. Biol. 106: 285–294.

    Google Scholar 

  • Fargette, D., Thouvenel, J.C., and Fauquet, C. 1987. Virus content of leaves of cassava infected by African cassava mosaic virus. Ann. appl. Biol. 110: 65–73.

    Google Scholar 

  • Fargette, D., Fauquet, C., and Thouvenel, J.C. 1988. Yield losses induced by African cassava mosaic virus in relation to the mode and the date of infection. Trop. Pest Management 34: 89–91.

    Google Scholar 

  • Fargette, D., Fauquet, C., Grenier, E., and Thresh, J.M. 1990. The spread of African cassava mosaic virus into and within cassava fields. J. Phytopathol. 130: 289–302.

    Google Scholar 

  • Fargette, D., Roberts, I.M., and Harrison, B.D. 1991. Particle purification and properties of cassava Ivorian bacilliform virus. Ann. appl. Biol. 119: 303–312.

    Google Scholar 

  • Fargette, D., Jeger, M., Fauquet, C., and Fishpool, L.D.C. 1994a. Analysis of temporal disease progress of cassava mosaic virus. Phytopathology 84: 91–98.

    Google Scholar 

  • Fargette, D., Thresh, J.M., and Otim-Nape, G.W. 1994b. The epidemiology of African cassava mosaic geminivirus: reversion and the concept of equilibrium. Trop. Science 34: 123–133.

    Google Scholar 

  • Fargette, D., Colon, L.T., Bouveau, R., and Fauquet, C. 1996. Components of resistance of cassava to African casava mosaic virus. European J. Plant Pathol. 102: 645–654.

    Google Scholar 

  • Fauquet, C., and Fargette, D. 1990. African cassava mosaic virus; etiology, epidemiology and control. Plant Dis. 74: 404–411.

    Google Scholar 

  • Fauquet, C., Fargette, D., and Thouvenel, J.C. 1988. Some aspects of the epidemiology of African cassava mosaic virus in Ivory Coast. Trop. Pest Management 34: 92–96.

    Google Scholar 

  • Fauquet, C., Bogusz, D., Chavarriaga, P., Franche, C., Schopke, C., and Beachy, R.N. 1992. Cassava viruses and genetic engineering. In: Biotechnology: Enhancing Research on Tropical Crops in Africa, G. Thottappilly, L.M. Monti, D.R. Mohan Raj and A.W. Moore (eds.). pp. 287–296, CTA/I.I.T.A. co-publication, IITA, Ibadan, Nigeria.

    Google Scholar 

  • Fauquet, C.M., Bisaro, D.M., Briddon, R.W., Brown, J.K., Harrison, B.D., Rybicki, E.P., Stenger, D.C., and Stanley, J. 2003. Revision of taxonomic criteria for species demarcation in the family Geminiviridae, and an updated list of begomovirus species. Arch Virol. 148: 405–421.

    Google Scholar 

  • Fishpool, L.D.C., and Burban, C. 1994. Bemisia tabaci: the whitefly vector of African cassava mosaic geminivirus. Trop. Science 34: 55–72.

    Google Scholar 

  • Fishpool, L.D.C., Fauquet, C., Fargette, D., Thouvenel, J.C., Burban, C., and Colvin, J. 1995. The phenology of Bemisia tabaci (Homoptera: Aleyodidae) populations on cassava in southern Côte d’Ivoire. Bull. Ent. Research 85: 197–207.

    Google Scholar 

  • Fokunang, C. N.., Akem, C., Dixon, A.G.O., and Ikotun, T. 2000. Evaluation of a cassava germplasm collection for reaction to three major diseases and the effect on yield. Genetic Resour. Crop Evolution 47: 63–71.

    Google Scholar 

  • Fondong, V.N., Adipala, E., and Thresh, J.M. 1997. Spread of African cassava mosaic geminivirus at four agroecological locations of Cameroon. African Crop Science Conf. Proc. 3: 1035–1049.

    Google Scholar 

  • Fondong, V.N., Pita, F.S., Rey, C., Bechy, R.N., and Fauquet, C.M. 1998. First report of the presence of East African cassava mosaic virus in Cameroon. Plant Dis. 82: 1172.

    Google Scholar 

  • Fondong, V.N., Pita, J.S., Rey, M.E.C., de Kochko, A., Beachy, R.N., and Fauquet, C.M. 2000a. Evidence of synergism between African cassava mosaic virus and a new doublerecombinant geminivirus infecting cassava in Cameroon. J. Gen. Virol. 81: 287–297.

    Google Scholar 

  • Fondong, V.N. Thresh, J.M., and Fauquet, C. 2000b. Field experiments in Cameroon on cassava mosaic virus disease and the reversion phenomenon in susceptible and resistant cassava cultivars. Internat. J. Pest Management 4: 211–217.

    Google Scholar 

  • Fondong, V.N., Thresh, J.M., and Zok, S. 2002. Spatial and temporal spread of cassava mosaic virus disease in cassava grown alone and intercropped with maize and/or cowpea. J. Phytopath. 150: 365–374.

    Google Scholar 

  • Fregene, M., and J. Puonti-Kaerlas. 2002. Cassava Biotechnology. In: Cassava: Biology, Production and Utilization. R.J. Hillocks, J.M. Thresh and A.C. Bellotto (eds.), Chapter 10, pp. 179–207. CABI Publishing, Wallingford, UK

    Google Scholar 

  • Fregene, M., Bernal, A., Duque, M., Dixon, A., and Tohme, J. 2000. AFLP analysis of African cassava (Manihot esculenta Crantz) germplasm resistant to cassava mosaic disease (CMD). Theo. Appl. Genetics 100: 678–685.

    Google Scholar 

  • Fregene, M., Matsumura, H., Akano, A., Dixon, A., and Terauchi, R. 2001a. Progress towards cloning the single dominant gene conferrring immunity to cassava mosaic disease (CMD). In: Cassava, an ancient crop for modern times: Food, health, culture, N.J. Taylor, F. Ogbe and C.M. Fauquet (eds), pp. S5–09, Donald Danforth Plant Sciences Center, St. Louis, USA.

    Google Scholar 

  • Fregene, M., Okogbenin, E., Mba, C., Angel, F., Suarez, M.C., Janneth, G., Chavarriaga, P., Roca, W., Bonierbale, M., and Tohme J. 2001b. Genome mapping in cassava improvement: Challenges, achievements and opportunities. Euphytica 120: 159–165.

    Google Scholar 

  • Frison, E.A., and Feliu, E. (eds.). 1991. FAO/IBPGR Technical guidelines for the safe movement of cassava germplasm. FAO, Rome. 48pp.

    Google Scholar 

  • Gibson, R.W., and Otim-Nape, G.W. 1997. Factors determining recovery and reversion in mosaic-affected African cassava mosaic virus resistant cassava. Ann. appl. Biol. 131: 259–271.

    Google Scholar 

  • Hahn, S.K., Terry, E.R., and Leuschner, K. 1980. Breeding cassava for resistance to cassava mosaic disease. Euphytica 29: 673–683.

    Google Scholar 

  • Hahn, S.K., John, C., Isoba, C., and Ikotun, T. 1989. Resistance breeding in root crops at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. Crop Protection 8: 147–168.

    Google Scholar 

  • Haley, A., Richardson, K., Zhan, X., and Morris, B. 1995. Mutagenesis of the BC1 and BV1 genes of African cassava mosaic virus identifies conserved amino acids that are essential for spread. J. Gen. Virol. 76: 1291–1298.

    Google Scholar 

  • Harrison, B.D. 1985. Advances in geminivirus research. Ann. Rev. Phytopathology 23: 55–82.

    Google Scholar 

  • Harrison, B.D. 1987. Properties and geographical variation of geminivirus isolates from mosaic affected cassava. In: International Seminar on African Casava Mosaic Disease and its control. pp 36–42, CTA, FAO, ORSTOM, IITA, IAPC publication, Yamoussoukro, Côte d’lvoire.

    Google Scholar 

  • Harrison, B.D., and D.J. Robinson, 1999. Natural genomic and antigenic variation in whiteflytransmitted geminiviruses (begomoviruses). Annu. Rev. Phytopathol. 37: 369–389.

    Google Scholar 

  • Harrison, B.D., Barker, H., Bock, K.R., Guthrie, E.J., and Meredith, G., and Atkinson, M. 1977. Plant viruses with circular single-stranded DNA. Nature 270: 760–762.

    Google Scholar 

  • Harrison, B.D., Swanson, M.M., McGrath; P.F and Fargette, D. 1991. Patterns of antigenic variation in whitefly-transmitted geminiviruses. Pages 88-90, Rept Scottish Crop Res Insititute 1990, Dundee.

    Google Scholar 

  • Harrison, B.D., Swanson, M.M., and Robinson, D.J. 1995. Cassava viruses in the Old World. In: Proc. Sec. Intern. Scientific Meeting Casssava Biotechnology Network, Bogor, Indonesia, 22-26 August 1994. pp. 463–472, Working Document No. 150. CBN/CRIFC/ AARD/CIBT.

    Google Scholar 

  • Harrison, B.D., Liu, Y.L., Zhou, X., Robinson, D.J., Calvert, L., Munoz, C., and Otim-Nape, G.W. 1997a. Properties, differentiation and geographical distribution of geminiviruses that cause cassava mosaic disease. Afric. J. Root and Tuber Crops 2: 19–22.

    Google Scholar 

  • Harrison, B.D., Zhou, X., Otim-Nape, G.W., Liu, Y., and Robinson, D.J. 1997b. Role of a novel type of double infection in the geminivirus-induced epidemic of severe cassava mosaic in Uganda. Ann. appl. Biol. 131: 137–148.

    Google Scholar 

  • Harrison, B.D., Swanson, M.M., and Fargette, D. 2002. Begomovirus coat protein: serology, variations and functions. Physiol. Molec. Plant Pathol. 60: 257–271.

    Google Scholar 

  • Hernández, A., Calderón, H., Zárate, R.D., and Lozano, J.C. 1975. El cuero de sapo de la yuca (Manihot esculenta Crantz). Noticias Fitopatológicas 4: 117–118.

    Google Scholar 

  • Hillocks, R.J., Raya, M.D., and Thresh, J.M. 1999. Distribution and symptom expression of cassava brown streak disease in southern Tanzania. Afric. J. Root and Tuber Crops 3: 57–62.

    Google Scholar 

  • Hillocks, R.J., Raya, M.D., Mtunda, K., and Kiozia, H. 2001. Effects of brown streak virus disease on yield and quality of cassava in Tanzania. J. Phytopathol. 149: 389–394.

    Google Scholar 

  • Hillocks, R.J., Thresh, J.M., Tomas, J., Botao, M., Macia, R., and Zavier, R. 2002. Cassava brown streak disease in northern Mozambique. Intern. J. Pest Management 48: 178–181.

    Google Scholar 

  • Hong, Y., and Stanley, J. 1996. Virus resistance in Nicotiana benthamiana conferred by African cassava mosaic virus replication-associated protein (AC1) transgene. Molec. Plant-Mocrobe Interact. 9: 219–225.

    Google Scholar 

  • Hong, Y.G., Robinson, D.J., and Harrison, B.D. 1993. Nucleotide sequence evidence for the occurrence of three distinct whitefly-transmitted geminiviruses in cassava. J. Gen. Virol. 74: 2437–244.

    Google Scholar 

  • Hrishi, N., Rajendran, P.G., Kamalam, P., Maini, S.B., Nair, N.G., and Lal, S.S. 1977. Genetic improvement of cassava for yield and quality: Screening hybrids/varieties against cassava mosaic disease. Annu. Report, pp. 15–16, Central Tuber Crops Res. Inst., Trivandrum, India.

    Google Scholar 

  • Hull, R., and Davies, J.W. 1992. Approaches to nonconventional control of plant virus diseases. Critic. Rev. Plant Science. 11: 17–33.

    Google Scholar 

  • IITA, 1986. Infection rate of selected cassava varieties by cassava mosaic virus. In: IITA Annual Report and Research Highlights 1985.P. 111, IITA, Ibadan, Nigeria.

    Google Scholar 

  • Jameson, J.D. 1964. Cassava mosaic disease in Uganda. East Afric. Agric. Forestry J. 29: 208–213.

    Google Scholar 

  • Jayasinghe, U., Pineda, B., and Lozano, J.C. 1984. Antholysis in cassava (Manihot esculenta Crantz.,) possibly caused by mycoplasma like organisms. Phytopathol. Z. 109: 295–300.

    Google Scholar 

  • Jeeva, M.L. 1997. Effect of secondary infection of cassava mosaic disease on growth and tuber yield of cassava. J. Mycol. Pl. Pathol. 27: 78–80.

    Google Scholar 

  • Jennings, D.L. 1957. Further studies in breeding cassava for virus resistance. East Afr. Agric. J. 22: 213–219.

    Google Scholar 

  • Jennings, D.L. 1960. Observations on virus diseases of cassava in resistant and susceptible varieties: I mosaic disease. Emp. J. Experimental Agric. 28: 23–34.

    Google Scholar 

  • Jennings, D.L. 1994. Breeding for resistance to African cassava mosaic geminivirus in East Africa. Trop. Science 34: 110–122.

    Google Scholar 

  • Kaiser, W.J., and Louie, R. 1982. Heat therapy of cassava infected with African cassava mosaic disease. Plant Dis. 66: 475–477.

    Google Scholar 

  • Kaiser, W.J., and Teemba, L.R. 1979. Use of tissue culture and thermotherapy to free East African cassava cultivars of African cassava mosaic and cassava brown streak diseases. Plant Dis. Reptr. 63: 780–784.

    Google Scholar 

  • Karakacha, H.W. 2001. Serological and molecular characterization of begomoviruses infecting cassava (Manihot esculenta Crantz) in Africa. Ph.D thesis, Univ. Hannover, 166pp.

    Google Scholar 

  • Karakacha, H.W., Koerbler, M., Epampuka, P.B., Ayecho, P., and Winter, S. 2001. Characterization and distribution of begomoviruses causing — Uganda variant — cassava mosaic virus disease in East and Central Africa. Proc. of the 3rd Geminivirus Symposium, Norwich, UK, 24-28. July 2001, p. 115.

    Google Scholar 

  • Kisgeci, J. 1989. Agricultural biomass for energy, CNRE study No. 4, University of Novi Sad. FAO 21: 58–59, Novi Sad.

    Google Scholar 

  • Kitajima, E.W., and Costa, A.S. 1964. Elongated particles found associated with cassava brown streak. EastAfr. Agric. Farming J. 29: 28–30.

    Google Scholar 

  • Kitajima, E.W., and Costa, A.S. 1966. Particulas esferoidais associadas ao virus do mosaico das nervuras da mandioca. Bragantia 25: 211–221.

    Google Scholar 

  • Kitajima, E.W., Wetter, C., Oliveira, A.R., Silva, D.M., and Costa, A.S. 1965. Morfologia do virus do mosaico comum da mandioca. Bragantia 24: 247–260.

    Google Scholar 

  • Lal, S.S., and Pillai, K.S. 1977. Annual Report. Cent. Tuber Crops Res. Inst. Trivandrum. pp. 67–82.

    Google Scholar 

  • Lal, S.S., and Pillai, K.S., 1982. Ecological studies on whitefly Bemisia tabaci (Genn.) infesting cassava in Kerala. Entomon 7: 101–102.

    Google Scholar 

  • Legg, J.P. 1994. Bemisia tabaci: the whitefly vector of cassava mosaic geminiviruses in Africa: An ecological perspective. African Crop Science J. 2: 437–448.

    Google Scholar 

  • Legg, J.P. 1999. Emergence, spread and strategies for controlling the pandemic of cassava mosaic virus disease and east and central Africa. Crop Protect. 18: 627–637.

    Google Scholar 

  • Legg, J.P., and Raya, M.D, 1998. Survey of cassava virus diseases in Tanzania. Int. J. Pest Management 44: 17–23.

    Google Scholar 

  • Legg, J.P., and Thresh, J.M. 2000. Cassava mosaic disease in East Africa: a dynamic disease in a changing environment. Virus Res. 71: 135–149.

    Google Scholar 

  • Legg, J.P., Gibson, R.W., and Otim-Nape, G.W. 1994. Genetic polymorphism amongst Ugandan populations of Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae), vector of African cassava mosaic geminivirus. Trop. Science 34: 73–81.

    Google Scholar 

  • Legg, J.P., James, B., Cudjoe, A., Saizonou, S., Gbaguidi, B., Ogbe, F., Ntonifor, N., Ogwal, S., Thresh, J.M., and Hughes, J. 1997. A regional collaborative approach to the study of ACMD epidemiology in sub-Saharan Africa. Afri. Crop Sci. Conf. Proc. 3: 1021–1033.

    Google Scholar 

  • Legg, J.P., Okao-Okuja, G., Mayala, R., and Muhinyuza, J.B. 2001a. Spread into Rwanda of the severe cassava mosaic virus disease pandemic and associated variant of East African cassava mosaic virus (EACMV-UG). Plant Pathol. 50: 796.

    Google Scholar 

  • Legg, J.P., Owor, B., and Okao-Okuja, G. 2001b. PCR-based diagnostics characterize the effects of cassava mosaic geminiviruses on yield and cassava mosaic disease epidemiology in Uganda. In: Cassava, an ancient crop for modern times: Food, health, culture, N.J. Taylor, Ogbe, F., and Fauquet, C.M. (eds), p. S8–09, Donald Danforth Plant Sciences Center, St. Louis, USA.

    Google Scholar 

  • Legg, J.P., French, R., Rogan, D., Okao-Okuja, G., and Brown, J. 2002. A distinct Bemisia tabaci (Gennadius) (Hemiptera: Sternorrhyncha: Aleyrodidae) genotype cluster is associated with the epidemic of severe cassava mosaic virus disease in Uganda. Molec. Ecol. 11: 1219–1229.

    Google Scholar 

  • Lennon A.M., Aiton, M.M., and Harrison, B.D. 1986a. Cassava viruses from Africa: Third country quarantine of cassava. In: Annual Report 1985, p 168. Scottish Crop Res. Inst., Dundee, Scotland.

    Google Scholar 

  • Lennon, A.M., Aiton, M.M., and Harrison, B.D. 1986b. Cassava viruses from South America. In: Annual Report 1985. p. 167. Scottish Crop Res. Inst., Dundee, Scotland.

    Google Scholar 

  • Lennon, A.M., Aiton, M.M., and Harrison, B.D. 1987. Purification and properties of cassava green mottle, a previously undescribed virus from the Solomon Islands. Ann. appl. Biol. 110: 545–555.

    Google Scholar 

  • Leuschner, K. 1977. Whiteflies: Biology and transmission of African cassava mosaic disease. In: Proceedings Cassava Protection Workshop, T. Brekelbaum, A. Belloti and J.C. Lozano (eds.). pp. 51–58, CIAT, Cali, Colombia.

    Google Scholar 

  • Lin, M.T., and Kitajima, E.W. 1980. Purificão e serologia do virus de mosaico das nervaduras damandioca. Fitopatol. Bras. 5: 419. (Abstr.)

    Google Scholar 

  • Lisha, S.V., Antony, B., Palanisawmi, M.S., and Henneberry, T.J. 2003. Bemisia tabaci (Homoptera: Aleyrodidae) biotypes in India. J. Econ. Entomol. 96(2): 322–327.

    Google Scholar 

  • Lister, R.M. 1959. Mechanical transmission of cassava brown streak virus. Nature (London) 183: 1588–1589.

    Google Scholar 

  • Liu, S., Bedford, I.D., Briddon, R.W., and Markham, P.G. 1997. Efficient whitefly transmission of African Casava mosaic geminivirus requires sequences from both genomic components. J. Gen. Viorol. 78: 1791–1794.

    Google Scholar 

  • Lozano, J.C., and Nolt, B.L. 1989. Pest and pathogens of cassava. In: Plant Protection and Quarantine: Selected Pests and Pathogens of Quarantine Significance Vol. 2 PR.P. Kahn, ed., pp. 174–175, CRC Press, Boca Raton, Florida.

    Google Scholar 

  • Mabanza, J., A.V. Rodriguez-Andriyamasi, J. Mahouka and B. Boumba. 1995. Evaluation of cleaned cassava varieties in Congo. In: Proc. Second Intern. Scientific Meeting Cassava Biotechnology Network, Vol. 1, pp. 194–201, 22-26 August 1994, Bogor, Indonesia, CBN/CRIFC/AARD/CIAT.

    Google Scholar 

  • Maffla, G., Roa, J.C., and Roca, W.M. 1984. Erradicacion de la enfermedad cuero de sapo de la yuca Manihot esculenta, pro medio del dultive de meristemos. Efecto de la termoterapia, y del tamano del explante sobre la tasa de saneamiento. In: Congreso Nacional de Cultivo de Tejidos Vegetales. D. Perea and Z.A Angarita (eds.). pp. 171–175, Bogota, Colombia, 1984. Memorias. Bogoata, U. Nacional de Colombia.

    Google Scholar 

  • Mahto, D.N., and Sinha, D.C. 1978. Evaluation of insecticides for the control of whitefly, Bemisia tabaci Genn. in relation to the incidence of mosaic of cassava. Indian J. Entomol. 40: 316–319.

    Google Scholar 

  • Mahungu, N.M., Dixon, A.G.O., and Kumbira, 1994. Breeding cassava for multiple pest resistance in Africa. Afric. Crop Science J. 2: 539–552.

    Google Scholar 

  • Malathi, V.G., and Sreenivasan, M.A. 1983. Association of gemini particles with cassava mosaic disease in India. J. Root Crops 9: 69–73.

    Google Scholar 

  • Malathi, V.G., Nair, N.G., and Shantha, P. 1985. Cassava mosaic disease. Technical Bulletin Series 5. Central Tuber Crops Research Institute, Trivandrum. 18 pp.

    Google Scholar 

  • Malathi, V.G., Thankappan, M., Nair, N.G., Nambisan, B., and Ghosh, S.P. 1987. Cassava mosaic disease in India. In: Proc. Intern. Seminar African mosaic disease and its control, C. Fauquet and D. Fargette (eds.), pp. 189–198, Yamoussoukro, Cote d’lvoire, 4-8 May 1987. CTA, FAO, ORSTOM, IITA, IAPC publication.

    Google Scholar 

  • Malathi, V.G., Varma, A., and Nambisan, B. 1989. Detection of Indian cassava mosaic virus by ELISA. Curr. Science 58: 149–150.

    Google Scholar 

  • Maruthi, M.N., Colvin, J., and Seal, S. 2001. Mating compatibility, life history traits and RAPD-PCR variation in Bemisia tabaci associated with the cassava mosaic disease pandemic in East Africa. Ent. Exp. Applicata 99: 13–23.

    Google Scholar 

  • Maruthi, M.N., Colvin, J., Seal, S., and Thresh, J.M. 2002a. First report of a distinct begomovirus infecting cassava from Zanzibar. Plant Dis. 86: 187.

    Google Scholar 

  • Maruthi, M.N., Colvin, J., Seal, S., Gibson, G., and Cooper, J. 2002b. Co-adapation between cassava mosaic geminiviruses and their local vector populations. Virus Res. 86: 71–85.

    Google Scholar 

  • Mathew, A.V. 1989. Studies on Indian cassava mosaic virus disease. Ph.D Thesis, Univ. Agric. Sciences, Bangalore, 237 pp.

    Google Scholar 

  • Mathew, A.V., and Muniyappa, V. 1992. Purification and characterisation of Indian cassava mosaic virus. Phytopathology 135: 299–308.

    Google Scholar 

  • Mathew, A.V., and Muniyappa, V. 1993. Host range of Indian cassava mosaic virus. Indian Phytopathology 46: 16–23.

    Google Scholar 

  • Mba, R.E.C., and Dixon, A.G.O. 1997. Heritability estimates for some newly developed cassava clones in Nigeria. Afric. J. Root Tuber Crops 2: 56–58.

    Google Scholar 

  • Monger, W.A., Seal, S., Isaac, A.M., and Foster, G.D. 2001a. Molecular characterization of Cassava brown streak virus coat protein. Plant Pathol. 50: 527–534.

    Google Scholar 

  • Monger, W.A., Seal, S., Cotton, S., and Foster, G.D. (2001). Identification of different isolates of Cassava brown streak virus and development of a diagnostic test. Plant Pathol. 50: 768–775.

    Article  CAS  Google Scholar 

  • Mtunda, K., Mahungu, N.M., Thresh, J.M., Kilima, M.S., and Kiozya, H.C. 1999. Cassava planting material sanitation for the control of cassava brown streak disease. In: Food security and crop diversification in SADC countries: the role of cassava and sweet potato. Proceedings of the Scientific Workshop of Southern African Root Crops Network, M.O. Akoroda and J.M. Teri (eds.), pp. 300–304, SADC/IITA/CIP, 476pp.

    Google Scholar 

  • Muller, H.R.A. 1931. Mozaiekziekte bij cassava. Institut voor Plantenziekten Bull. 24: 17.

    Google Scholar 

  • Nair, N.G. 1975. Transmission studies on CMD using whitefly Bemisia tabaci Genn. Annual Report, Central Tuber Crops Research Institute, Trivandrum. pp. 70

    Google Scholar 

  • Nair, N.G. 1977. Transmission of cassava mosaic virus. Annual Report. Central Tuber Crops Research Institute, Trivandrum, pp 61.

    Google Scholar 

  • Nair, N.G. 1981. Relationship between cassava mosaic disease spread and whitefly (Bemisia tabaci Gen.) population under different insecticide treatments. J. Root Crops 7: 15–19.

    Google Scholar 

  • Nair, N.G. 1985. Nature and extent of spread of cassava mosaic disease. In: Proceedings of the National Symposium on Production and Utlization of Tuber Crops, held on Nov. 27-29 1985, CTCRI, Trivandrum and published by Indian Society of Root Crops, pp. 175–178, CTCRI, Trivandrum, India.

    Google Scholar 

  • Nair, N.G. 1988. Influence of inoculum source and varietal susceptibility on the field spread of Indian cassava mosaic disease. J. Root Crops 14: 5–9.

    Google Scholar 

  • Nair, N.G. 1990. Performance of virus-free cassava (Manihot esculenta Crantz) developed through meristem tip culture. J. Root Crops 16: 123–131.

    Google Scholar 

  • Nair, N.G., and Daniel, R.S. 1983. Preference of Bemisia tabaci (Genn.) to cassava varieties and their reaction to cassava mosaic disease. J. Root Crops. 9(1-2): 45–49.

    Google Scholar 

  • Nair, N.G., and Malathi, V.G. 1987. Disease severity and yield loss in cassava (Manihot esculenta Crantz.) due to Indian cassava mosaic disease. J. Root Crops 13: 91–94.

    Google Scholar 

  • Nair, N.G., and Thankappan, M. 1990. Spread of Indian cassava mosaic disease under different agroclimatic locations. J. Root Crops. ISRC Nat. Sym. Special Volume, 216–219.

    Google Scholar 

  • Narasimhan, V., and Arjunan, G. 1976. Mosaic disease of cassava — loss in yield and tuber splitting. Indian Phytopathol. 29: 428–429.

    Google Scholar 

  • Neuenschwander, P., Hughes, J.d’A., Ogbe, F., Ngatse, J.M., and Legg, J.P. 2002. The occurrence of the Uganda variant of East African cassava mosaic virus (EACMV-UG) in western Democratic Repulic of Congo and the Congo Republic defines the westernmost extent of the CMD pandemic in East/Central Africa. Plant Pathol. 51(3): 385.

    Google Scholar 

  • Ng, S.Y.C. 1986. Reinfection of selected cassava clones with the cassava mosaic virus and the tuber yield. In: IITA Root and Tuber Improvement Program Annual Report 1986. pp. 65–67 International Institute of Tropical Agriculture(IITA), Ibadan, Nigeria.

    Google Scholar 

  • Ng, S.Y.C., Rossel, H.W., and Thottappilly, G. 1990. The role of tissue culture in the establishment of disease-free germplasm for international distribution, In: Integrated Pest Management for Tropical Root and Tuber Crops, S.K. Hahn and F.E. Caveness (eds), pp. 73–77, IITA, Ibadan, Nigeria.

    Google Scholar 

  • Ng, S.Y.C., Thottappilly, G., and Rossel, H.W. 1992. Tissue Culture in disease elimination and micropropagation, In: Biotechnology: Enhancing Research on Tropical Crops in Africa. G. Thottappilly, L.M. Monti, D.R. Mohan Raj, A.W. Moore (eds.), pp. 171–182, CTA/I.I.T.A. co-publication. IITA, Ibadan, Nigeria.

    Google Scholar 

  • Nichols, R.F.W. 1947. Breeding cassava for virus resistance. EastAfr. Agric. J. 15: 154–160.

    Google Scholar 

  • Nichols, R.F.W. 1950. The brown streak disease of cassava: distribution, climatic effects and diagnostic symptoms. EastAfr. Agric. J. 15: 154–160.

    Google Scholar 

  • Njock, T.E., Atiri, G.I., Thottappilly, G., and Hahn, S.K. 1994. Distribution and disease recovery of African cassava mosaic virus (ACMV) in stems of resistant and susceptible cassava. In: Proc. Fifth Triennial Symp. Intern. Soc. Tropical Root Crop-African Branch (ISTRC-AB), pp. 149–152. Fifth Triennial ISTRC-AB Symposium, Kampala, Uganda, 22-28 November, 1992.

    Google Scholar 

  • Njock, T.E., Atiri, G.I., Thottappilly, G., and Thresh, J.M. 1996. Disease development and recovery in resistant and susceptible cassava genotypes infected by African cassava mosaic geminivirus. African Plant Protection 2: 97–102.

    Google Scholar 

  • Nnodu, E.C., and Ogbe, F.O. 1994. Re-evaluation of elite cassava varieties for sustained yield and resistance to major cassava diseases. Nigerian J. Plant Protection 15: 38–43.

    Google Scholar 

  • Nolt, B.L., Velasco, A.C., and Pineda, B. 1991. Improved purification procedure and some serological and physical properties of cassava common mosaic virus from South America. Ann. appl. Biol. 118: 105–113.

    Google Scholar 

  • Nolt, B.L., Pineda, L.B., and Velasco, A.C. 1992. Surveys of cassava plantations in Colombia for virus and virus-like diseases. Plant Pathol. 41: 348–354.

    Google Scholar 

  • Noueiry, A.O., Lukas, W.J., and Gilbertson, R.L. 1994. Two proteins of a plant DNA virus coordinate nuclear and plasmodesmal transport. Cell 76: 925–932.

    Google Scholar 

  • Offei, S.K., Owuna-Kwakye, M., and Thottappilly, G. 1999. First report of East African cassava mosaic begomovirus in Ghana. Plant Dis. 83: 877.

    Google Scholar 

  • Ogbe, F.M. 2001. Survey of cassava begomoviruses in Nigeria and the response of resistant cassava genotypes to African cassava mosaic begomovirus infection. Ph.D. thesis, University of Ibadan, Nigeria, 197 pp.

    Google Scholar 

  • Ogbe, F.O., Legg, J., Raya, M.D., Muimba-kankolongo, A., Theu, M.P., Kaitisha, G., Phiri, N.A., and Chalwe, A. 1997a. Diagnostic survey of cassava mosaic viruses in Tanzania, Malawi and Zambia. Roots 4: 12–15.

    Google Scholar 

  • Ogbe, F.O., Thottappilly, G., and Quin, F.M. 1997b. Implementation in Africa of serological diagnostic test for cassava mosaic geminiviruses. African J. Root Tuber Crops 2: 33–36.

    Google Scholar 

  • Ogbe, F.O., Atiri, G.I., Robinson, D., Winter, S., Dixon, A.G.O., Quin, F.M. and Thottappilly, G. 1999. First report of East African cassava mosaic begomovirus in Nigeria. Plant Dis. 83: 398.

    Google Scholar 

  • Ogbe, F.O., Atiri, G.I., Thottappilly, G., Dixon, A.G.O., Mignouna, H.D., and Quin, F.M. 2001. Evidence of double infection and random occurrence of cassava begomoviruses in sub-Saharan Africa. In: Root Crops in the 21st Century. M.O. Akoroda and J.M. Ngeve (eds.). pp. 524–529, Proc. Seventh Triennial Symp. Intern/ Soc. Tropical Root Crop African Branch (ISTRC-AB), Cotonou, Benin Republic.

    Google Scholar 

  • Ogbe F.O., Dixon, A.G.O., G.I. Atiri, A.G.O., and Thottappilly, G.. 2002. Restriction of virus movement into axillary buds in an important aspect of resistance in cassava to African cassava mosaic virus. J. Phytopath. 150: 546–552.

    Google Scholar 

  • Ogbe, F.O., Atiri, G.I., Dixon, A.G.O., and Thottappilly, G. 2003a. Symptom severity of cassava mosaic disease in relation to concentration on African cassava mosaic virus in different cassava genotypes. Plant Pathol. 52, 84–91.

    Google Scholar 

  • Ogbe, F.O., Atiri, G. I., Dixon, A.G.O., and Thottappilly, G. 2003b. Serological and biological variations of African cassava mosaic virus in Nigeria. Ann. appl. Biol. 143: 203–213.

    Google Scholar 

  • Ogbe, F.O., Thottappilly, G., Dixon, A.G.O., and Atiri, G.I. 2003c. Variants of East African cassava mosaic virus and their distribution in double infections with African cassava mosaic virus in Nigeria. Plant Dis. 87: 229–232.

    Google Scholar 

  • Otim-Nape, G.W., Bua, A., and Baguma, Y. 1994a. Accelerating the transfer of improved production technologies: Controlling African cassava mosaic virus disease epidemic in Uganda. Afric. Crop Science J. 2: 479–495.

    Google Scholar 

  • Otim-Nape, G.W., Shaw, M.W., and Thresh, J.M. 1994b. The effects of African cassava mosaic geminivirus on the growth and yield of cassava in Uganda. Trop. Science 34: 43–54.

    Google Scholar 

  • Otim-Nape, G.W., Bua, A., Thresh, J.M., Baguma, Y., Ogwal, S., Ssemakula, G.N., Acola, G., Byabakama, B., and Martin, A. 1997a. Cassava mosaic virus disease in Uganda: The current pandemic and approaches to control. NARO, NRI, ODA publication, 65pp.

    Google Scholar 

  • Otim-Nape, G.W., Thresh, J.M., and Shaw, M.W. 1997b. The effects of cassava mosaic virus disease on yield and compensation in mixed stands of healthy and infected cassava. Ann. appl. Biol. 130: 503–521.

    Google Scholar 

  • Otim-Nape, G.W., Thresh, J.M., and Shaw, M. 1998a. The incidence and severity of cassava mosaic virus disease in Uganda: 1990–1992. Trop. Science 38: 25–37.

    Google Scholar 

  • Otim-Nape, G.W., Thresh, J.M., Bua, A., Baguma, Y., and Shaw, M.W. 1998b. Temporal spread of cassava mosaic virus disease in a range of cassava cultivars in different agroecological regions of Uganda. Ann. appl. Biol. 133: 415–430.

    Google Scholar 

  • Otim-Nape, G.W., Bua, A., Thresh, J.M., Baguma, Y., Ogwal, S., Ssemakula, G.N., Acola, G., Byabakama, B., Colvin, J., Cooter, R.J., and Martin, A. 2000. The current pandemic of cassava mosaic virus disease in East Africa and its control. Natu. Resour. Inst. Chatham, UK, 100pp.

    Google Scholar 

  • Otim-Nape, G.W., Alicai, T., and Thresh, J.M. 2001. Changes in the incidence and severity of cassava mosaic virus disease, varietal diversity and cassava production in Uganda. Ann. appl. Biol. 138: 313–327.

    Google Scholar 

  • Padidam, E., Sawyer, S., and Fauquet, C.M. 1999. Possible emergence of new geminiviruses by frequent recombination. Virology 265: 218–225.

    Google Scholar 

  • Palaniswami, M.S., and Pillai, K.S. 1991. Bioecology of Bemisia tabaci G. on cassava. J. Root Crops. 17(special): 169–173.

    Google Scholar 

  • Palaniswami, M.S., Pillai, K.S., Nair, R.R., and Mohandas, C. 1994. New cassava pest in India. Cassava Newsletter (CIAT) 19(1): 6–7.

    Google Scholar 

  • Palaniswami, M.S., Nair, R.R., Pillai, K.S., and Thankappan, M. 1996. Whiteflies on cassava and its role as vector of cassava mosaic disease in India. J. Root Crops. 22: 1–8.

    Google Scholar 

  • Palaniswami, M.S., Vijayan, S.L., and Antony, B. 2000. Biotypes in Bemisia tabaci Genn.-A first report in India. CTCRI News, 17: 5, Central Tuber Crops Research Institute, Thiruvananthapuram, India

    Google Scholar 

  • Palaniswami, M.S., Antony, B., and Vijayan, S.L. 2001. Indian bibliography of sweet potato whitefly Bemisia tabaci (Genn.) 1979–1998. Central Tuber Crops Research Institute, Thiruvananthapuram, India, 144 pp.

    Google Scholar 

  • Paranidharan, V. 1994. Use of ELISA to detect Indian cassava mosaic virus (ICMV) from meristem derived cassava (Manihot esculenta Crantz) and studies on secondary spread by the vector Bemisia tabaci Genn. M. Sc thesis, Dept. Plant Pathol, Tamil Nadu Agric. University, Coimbatore.

    Google Scholar 

  • Pascal, E., Sanderfoot, A.A., Ward. B.M., Medville, R., Turgeon, R., and Lazarowitz, S.G. 1994. The geminivirus BR1 movement protein binds single stranded DNA and localises to the cell nucleus. Plant Cell 6: 995–1006.

    Google Scholar 

  • Paximadis, M., Idris, A.M., Torrez-Jerez, I., Villareal, A., Rey, M.E.C., and Brown, J.K. 1999. Characterization of tobacco geminiviruses in the old and new world. Arch. Virol. 144: 703–717.

    Google Scholar 

  • Pillai, K.S., and Daniel, R.S. 1979. Monthly variations in the population of whitefly Bemisia tabaci, the vector of cassava mosaic disease. J. Root Crops 5: 8–10.

    Google Scholar 

  • Pineda, B., Jayasinghe, U., and Lozano, J.C. 1983. La enfermedad “Cuero de Sapo” en yuca (Manihot esculenta, Crantz). ASIAVA 4: 10–12.

    Google Scholar 

  • Pita, J.S., Fondong, V.N., Sangare, A., Kokora, R.N.N., and Fauquet, C.M. 2001a. Genetic and biological diversity of the African cassava geminiviruses. Euphytica 120: 115–125.

    Google Scholar 

  • Pita, J.S., Fodong, V.N., Sangare, A., Otim-Nape, G.W., Ogwal, S., and Fauquet, C.M. 2001b. Recombination, pseudorecombination and synergism of geminiviruses are determinant keys to the epidemic of severe cassava mosaic disease in Uganda. J. Gen. Virol. 82: 655–665.

    Google Scholar 

  • Powell-Abel, P., Nelson, R.S., De, B., Noffman, N., Rogers, S.G., Fraley, R.T., and Beachy, R.N. 1986. Delay of disease development in transgenic plants that express the tobacco mosaic virus coat protein gene. Science 232: 738–743.

    Google Scholar 

  • Rajinimala, N. 2002. Biological, serological and polymerase chain reaction studies of whitefly transmitted geminiviruses with special reference to bitter gourd yellow mosaic virus disease. M. Sc thesis Dept. Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, 123pp.

    Google Scholar 

  • Rani, R.V., Karthikeyan, A.S., Anuradha, S., and Veluthambi, K., 1996. Genome homologies among geminiviruses infecting Vigna, cassava, Acalypha, Croton and Vernonia. Current Science 70(1): 63–69.

    Google Scholar 

  • Ranomenjanahary, S., Rabindran, R., and Robinson, D.J. 2002. Occurrence of three distinct begomoviruses in cassava in Madagascar. Ann. appl. Biol. 140: 315–318.

    Google Scholar 

  • Rey, M.E.C., and Thompson, G. 1998. Cassava mosaic disease in South Africa. Roots 5(1): 3–5.

    Google Scholar 

  • Roberts, S., and Stanley, J. 1994. Lethal mutations within the conserved stem-loop of African cassava mosaic virus DNA are rapidly corrected by genomic recombination. J. Gen. Virol. 75: 3203–3209.

    Google Scholar 

  • Roberts, I.M., Robinson, D.J., and Harrison, B.D. 1984. Serological relationships and genome homologies among geminiviruses. J. Gen. Virol. 65: 1723–1730.

    Google Scholar 

  • Rojas, M.R., Gilbertson, R.L., Russel, D.R., and Maxwell, D.P. 1993. Use of degenerate primers in the polymerase chain reaction to detect whitefly-transmitted geminiviruses. Plant Dis. 77: 340–347.

    Google Scholar 

  • Rossel, H.W., and Thottappilly, G. 1984. The etiology of African cassava mosaic finally elucidated? IITA Research Briefs 5(3): 2–3.

    Google Scholar 

  • Rossel, H.W., and Thottappilly, G. 1985. Virus diseases of important food crops in Tropical Africa. Intern. Inst. Tropical Agric. (IITA) Ibadan, Nigeria, 67 pp.

    Google Scholar 

  • Rossel, H.W., Thottappilly, G., Van Lent, J.M.W., and Huttinga, H. 1987. The etiology of cassava mosaic in Nigeria. In: Proc. Intern. Seminar African Cassava Mosaic Disease and its Control, C. Fauquet and D. Fargette (eds), pp-43–56, 4–8 May 1987, Yamoussoukro, Côte d’lvoire. CTA, FAO, ORSTOM, IITA, IAPC publication.

    Google Scholar 

  • Rybicki, E.P., and Pietersen, G. 1999. Plant virus disease problems in the developing world. Adv. Virus Research 53: 125–175, Academic Press.

    Google Scholar 

  • Sanderfoot, A.A., Ingham, D.J., and Lazarowitz, S.G. 1996. A viral movement protein as a nuclear shuttle — the geminivirus BR1 contains domains essential for interaction with BL1 and nuclear localization. Plant Physiol. 110: 23–33.

    Google Scholar 

  • Saunders, K., Lucy, A., and Stanley, J. 1991. DNA forms of the geminivirus African cassava mosaic virus consistent with a rolling circle mechanism of replication. Nucleic Acids Res. 19: 2325–2330.

    Google Scholar 

  • Saunders, K., Salim, N., Mali, V.R., Malathi, V.G., Briddon, S.R., Markham, P.G. and Stanley, J. 2002. Characterisation of Sri Lankan cassava mosaic virus and Indian cassava mosaic virus: Evidence for acquisition of a DNA B component by a monopartite begomovirus. Virology 293: 63–74.

    Google Scholar 

  • Schöpke, C., Taylor, N.J., Masona, M.V., Carcamo, R., Ho, T., Beachy, R.N., and Fauquet, C.M. 1998. Production and characterization of transgenic cassava plants containing the coat protein gene of cassava common mosaic virus. In: Fourth Intern. Scientific Meet. Cassava Biotechnology Network (CBN), Carvalho, L.J.C.B, Thro A-M., and A.D. Vilarinhos (Eds). pp. 236–243, Salvador, Bahia, Brazil, November 3–7, 1998. EMBRAPA, Brasilia.

    Google Scholar 

  • Scott, G.J., Best, R. Rosengrant, M.W., and Bokanga, M. 2000. Roots and tubers in the global food system: A vision statement to the year 2020. International Potato Center, Lima, Peru, 111 pp.

    Google Scholar 

  • Seif, A.A. 1981. Transmission of cassava mosaic virus by Bemisia tabaci. Plant Dis. 65: 606–607.

    Google Scholar 

  • Seif, A.A. 1982. Effect of cassava mosaic virus on yield of cassava. Plant Dis. 66: 661–662.

    Google Scholar 

  • Sequeira, J.C., and Harrison, B.D. 1982. Serological studies on cassava latent virus. Ann. appl. Biol. 101: 33–42.

    Google Scholar 

  • Shoyinka, S.A., Thottappilly, G., McGrath, F.F., and Harrison, B.D., 2001. Detection, relationships and properties of cassava mosaic geminivirus in naturally infected castor oil plant, Ricinus communis L. in Nigeria, In: Cassava, an ancient crop for modern times: Food, health, culture, N.J. Taylor, F. Ogbe and C.M. Fauquet (eds), pp. S8–20, Donald Danforth Plant Sciences Center, St. Louis, USA.

    Google Scholar 

  • Silberschmid, K. 1938. O mosaico da mandioca. O Biologico 4: 177–182.

    Google Scholar 

  • Silva, D.M., Kitajima, E.W., and Oliveira, A.R. 1963. Obtencao do virus do mosaico comun da mandioca purificado. Ciencia e Cultura 15: 304.

    Google Scholar 

  • Smith, S.S. 1988. Root and tuber processing and utilization. A case study of Sierra Leone. A paper presented at the IITA-UNICEF Inter-regional Experts Group Meeting. April 13–19, Ibadan, Nigeria, pp. 306–323.

    Google Scholar 

  • Sserubombwe, W.S., Thresh, J.M., Otim-Nape, G.W., and Osiru, D.O.S. 2001. Progress of cassava mosaic disease and whitefly vector populations in single and mixed stands of four cassava varieties grown under epidemic conditions in Uganda. Ann. appl. Biol. 138: 161–170.

    Google Scholar 

  • Stanley, J. 1983. Infectivity of the cloned geminivirus genome requires sequences from both DNAs. Nature 305: 643–645.

    Google Scholar 

  • Stanley, J., and Gay, M.R. 1983. Nucleotide sequence of cassava latent virus DNA. Nature 301: 260–262.

    Google Scholar 

  • Stanley, J., Townsend, R., and Curson, S.J. 1985. Pseudorecombinants between cloned DNAs of two isolates of cassava latent virus. J. Gen. Virol. 66: 1055–1061.

    Google Scholar 

  • Storey, H.H. 1936. Virus diseases of East African plants: VI. A progress report on studies of the diseases of cassava. EastAfr. Agric. J. 2: 34–39.

    Google Scholar 

  • Storey, H.H. 1938. Virus diseases of East African plants, VII. A field experiment in the transmission of cassava mosaic virus. EastAfr. Agric. J. 3: 446–449.

    Google Scholar 

  • Storey, H.H., and Nichols, R.F.W. 1938. Studies of the mosaic disease of cassava. Ann. appl. Biol. 25: 790–806.

    Google Scholar 

  • Swanson, M.M., and Harrison, B.D. 1994. Properties, relationships and distribution of cassava mosaic geminiviruses. Trop. Science 34: 15–25.

    Google Scholar 

  • Swanson, M.M., Brown, J.K., Poulos, B.T., and Harrison, B.D. 1992. Genomic affinities and epitope profiles of whitefly transmitted geminiviruses from the Americas. Ann. appl. Biol. 121: 285–296.

    Google Scholar 

  • Taylor, N.J., Masona, M.V., and Fauquet, C.M. 2002. Transgenic cassava for food security and economic development. In: Transgenic Plants and Crops, G.K. Khachatourians, A. McHughen, R. Scorza, Wai-Kit Nip, and Y.H. Hui (eds), pp. 523–546, Marcel Dekker, Inc., Basel, Switzerland.

    Google Scholar 

  • Thankappan, M., and Chacko, C.I. 1976. Effect of cassava mosaic on the different plant parts and tuber yield in cassava. J. Root Crops 2: 45–47.

    Google Scholar 

  • Thankappan, M., Nair, N.G., and Nair, R.R. 1996. Degeneration of cassava planting materials due to CMD. In: Tropical Tuber Crops. G.T. Kurup, M.S. Palaniswami, V.P. Potty, G. Padmaja, S. Kabeerathumma and Santha V. Pillai (eds), pp. 370–374, Oxford & IBH, New Delhi, 597 pp.

    Google Scholar 

  • Thomas, J.E., Massalski, P.R., and Harrison, B.D. 1986. Production of monoclonal antibodies to African cassava mosaic virus and differences in their reactivity with other whiteflytransmitted geminiviruses. J. Gen. Virol. 67: 2739–2748.

    Google Scholar 

  • Thottappilly, G. 1992. Plant virus diseases of importance to African agriculture. J. Phytopathol. 134: 264–288.

    Google Scholar 

  • Thottappilly, G., and Rossel, H.W. 1988. Application of new virus detection techniques at IITA. In: IITA meeting reports series 2, The use of biotechnology for the improvement of cassava, yams and plantain in Africa. pp. 51–54. International Institute of Tropical Agriculture, Ibadan, Nigeria. 73pp.

    Google Scholar 

  • Thottappilly, G., Ng, S.Y.C., and Winter, S. 1999. Supply of pest free stock. In: Abstr. XIVth Intern. Plant Protect. Congr. (IPPC), Jerusalem, Israel, 25-30 July, 1999, p. 86

    Google Scholar 

  • Thottappilly, G., Hamilton, R.I., Huguenot, C., Rossel, H.W., Furneaux, M.T., Gumedzoe, M.Y., Shoyinka, S.A., Naik, D.M., Konate, G., Atchem-Agneroh, T., Haciwa, H.C., Anno-Nyako, F.O., Saifodine, N. I., Wangai, A., Lamptey, P., Gubba, A., Mbwaga, D.M., Neya, J., and Offei, S.K. 1993. Identification of cowpea viruses and their strains in tropical Africa in a pilot project involving an advanced laboratory, an international center, and other national programs. FAO Plant Protection 41: 65–71.

    Google Scholar 

  • Thresh, J.M., and Fargette, D. 2001. Virus diseases of tropical crops. Encyclopedia of Life Sciences, pages 1-9. Nature Publishing Group (http://www.els.net).

  • Thresh, J.M., and Fargette, D. 2003. The epidemiology of African plant viruses: Basic principles and concepts. IITA Publication (in press)

    Google Scholar 

  • Thresh J.M., and Mbwana, M.W. 1998. Cassava mosaic and cassava brown streak virus diseases in Zanzibar. Roots 6: 6–9.

    Google Scholar 

  • Thresh J.M., and Otim-Nape, G.W. 1994. Strategies for controlling African cassava mosaic geminivirus. Advances in Disease Vector Res. 10: 215–236.

    Google Scholar 

  • Thresh J.M., Fargette, D., and Otim-Nape, G.W. 1994a. The viruses and virus diseases of cassava in Africa. Afric. Crop Science J. 2: 459–478.

    Google Scholar 

  • Thresh, J.M., Fargette, D., and Otim-Nape, G.W. 1994b. Effects of African cassava mosaic geminivirus on the yield of cassava. Trop. Science 34: 26–42.

    Google Scholar 

  • Thresh, J.M., Otim-Nape, G.W., and Jennings, D.L. 1994c. Exploiting resistance to African cassava mosaic virus. Aspects Appl. Biol. 39: 51–60.

    Google Scholar 

  • Thresh, J.M., Otim-Nape, G.W., Legg, J.P., and Fargette, D. 1997. African cassava mosaic virus disease: the magnitude of the problem. Afric. J. Root and Tuber Crops 2: 13–19.

    Google Scholar 

  • Thresh, J.M., Otim-Nape, G.W., and Fargette, D. 1998a. The control of African cassava mosaic virus disease: phytosanitation and/or resistance? In: Plant Virus Disease Control, A. Hadidi, R.K. Khetarpal and H. Koganezawa (eds.). pp. 670–677, American Phytopathological Society, St. Paul, Minnesota.

    Google Scholar 

  • Thresh, J.M., Otim-Nape, G.W., and Fargette, D. 1998b. The components and deployment of resistance to cassava mosaic virus disease. Integrated Pest Manag. Rev. 3: 209–224.

    Google Scholar 

  • Thresh, J.M., Otim-Nape, G.W., Thankappan, M., and Muniyappa, V. 1998c. The mosaic diseases of cassava in Africa and India caused by whitefly-borne geminiviruses. Rev. Plant Pathol. 77: 935–945.

    Google Scholar 

  • Walter, B., Ladeveze, I., Etienne, L., and Fuchs, M., 1989. Some properties of a previously undescribed virus from cassava: cassava American latent virus. Ann. appl. Biol. 115: 279–289.

    Google Scholar 

  • Warburg, O. 1894. Die Kulturpflantzen Usambaras. Mitteilungen Deutschen Schutzgebieten 7: 131.

    Google Scholar 

  • Ward, B.M., Medville, R., Lazarowitz, S.G., and Turgeon, R. 1997. The geminivirus BL1 movement protein is associated with endoplasmic reticulum derived tubules in developing phloem cells. J. Virol. 71: 3726–3733.

    Google Scholar 

  • Winter, S. 1998. Analysis of cassava samples from Guinea to study presence of viruses contributing to cassava mosaic disease (CMD). West African Seed and Planting Material Newsletter (WASEED, English edition), 2: 7–8.

    Google Scholar 

  • Wright, R.M. 1996. Jamaica’s energy: Old prospects, new resources. Twin Guinep publishers/ StephensonLitto Press.

    Google Scholar 

  • Zhang, P., Legris, G., Coulin, P., and Puonti-Kaerlas, 2000. Production of stably transformed cassava plant via particle bombardment. Plant Cell Reports 19: 939–945.

    Google Scholar 

  • Zhou, X., Liu, Y., Calvert, L., Munoz, C., Otim-Nape, G.W., Robinson, D.J., and Harrison, B.D. 1997. Evidence that DNA-A of a geminivirus associated with severe cassava mosaic disease in Uganda has arisen by interspecific recombination. J. Gen. Virol. 78: 2101–2111.

    Google Scholar 

  • Zhou, X., Liu, Y. Robinson, D.J., and Harrison, B.D. 1998. Types of variation in DNA-A among isolates of East African Cassava mosaic virus from Kenya, Malawi and Tanzania. J. Gen. Virol. 79: 2835–2840.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2003 Springer Science+Business Media Dordrecht

About this chapter

Cite this chapter

Thottappilly, G., Thresh, J.M., Calvert, L.A., Winter, S. (2003). Cassava. In: Loebenstein, G., Thottappilly, G. (eds) Virus and Virus-like Diseases of Major Crops in Developing Countries. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0791-7_6

Download citation

  • DOI: https://doi.org/10.1007/978-94-007-0791-7_6

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-3729-7

  • Online ISBN: 978-94-007-0791-7

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics