Genetic Resources and Crop Evolution

, Volume 53, Issue 5, pp 975–983 | Cite as

Cassava Genetic Resources: Extinct Everywhere in Brazil

Article
Received:
Accepted:

Abstract

Wild cassava, Manihot spp. are sources of many useful characters. Their occurrence in natural habitats is diminishing day after day and a number of them almost have come to extinction. It is suggested that in situ conservation should be followed. It is appealed to concerned authorities to make an effort for their salvation.

Keywords

Extinction Genetic resources In situ Manihot spp. Conservation 
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Nassar, N.M.A. 1978aConservation of the genetic resouces of cassava (Manihot esculenta): determination of wild species localities with emphasis on probable originEcon. Bot.32311320Google Scholar
  2. Nassar, N.M.A. 1978bGenetic resouces of cassava: chromosome behaviour in some Manihot speciesIndian J. Genet.38135137Google Scholar
  3. Nassar, N.M.A. 1978cHydrocyanic acid content in some wild Manihot (cassava) speciesCan. J. Plant Sci.58577578Google Scholar
  4. Nassar, N.M.A. 1978dMicrocenters of wild cassava Manihot spp. diversity in Central BrazilTurrialba28345347Google Scholar
  5. Nassar, N.M.A. 1978eSome further species of Manihot with potential value to cassava breedingCan. J. Plant Sci.58915916Google Scholar
  6. Nassar, N.M.A. 1978fWild Manihot species of Central Brazil for cassava breedingCan. J. Plant Sci.58257261Google Scholar
  7. Nassar, N.M.A. 1979aA study of the collection and maintenance of the germoplasm of wild cassavaManihot spp. Turrialba29221221Google Scholar
  8. Nassar, N.M.A. 1979bThree Brazilian Manihot species with tolerance to stress conditionsCan. J. Plant Sci59533555Google Scholar
  9. Nassar, N.M.A. 1980aAttempts to hybridize wild Manihot species with cassavaEcon. Bot.341315Google Scholar
  10. Nassar, N.M.A. 1980bThe need for germplasm conservation in wild cassavaIndian J. Genet.39465470Google Scholar
  11. Nassar, N.M.A. 1982Collecting wild cassavas in BrazilIndian J. Genet.42405411Google Scholar
  12. Nassar, N.M.A. 1985Manihot neusana Nassar: a new species native to ParanaBrazilCan. J. Plant Sci.6510971100CrossRefGoogle Scholar
  13. Nassar, N.M.A. 1986Genetic variation of wild Manihot species native to Brazil and its potential for cassava improvementField Crops Res.13177184CrossRefGoogle Scholar
  14. Nassar, N.M.A. 1989Broadening the genetic base of cassavaManihot esculenta Crantz by interspecific hybridizationCon. J. Plant Sci.6910711073Google Scholar
  15. Nassar, N.M.A. 1991Production of triploid cassavaManihot esculenta Crantz by hybrid diploid gametesField Crops Res.13173182Google Scholar
  16. Nassar N.M.A. and Costa C.P. 1997. Tuber formation and protein content in some wild cassava (mandioca) species native to Central Brazil. Experiencia 33: 1304–1306.Google Scholar
  17. Nassar, N.M.A., Dorea, G. 1982Protein contents of cassava cultivars and its hybrid with Manihot speciesTurrialba32429432Google Scholar
  18. Nassar, N.M.A., Cardenas, R. 1985Collecting wild cassava in Northern MexicoFAO/IBPGR Newslett.652931Google Scholar
  19. Nassar, N.M.A. 1992Cassava in South America: a plant breeder viewCiência e Cultura442527Google Scholar
  20. Nassar, N.M.A. 1994Selection and development of apomitic cassava clonesCiência e Cultura16168171Google Scholar
  21. Nassar, N.M.A., Nassar Hala, N.M., Vieira, C., Saraiva, S.L. 1995Cytogenetic behavior of interspecific hybrids of cassava and M. neusana NassarCan. J. Plant Sci.75675678Google Scholar
  22. Nassar, N.M.A., Carvalho, C.G., Vieira, C. 1996Overcoming barriers between cassava Manihot esculenta Crantz and wild relative M. pohili Warwa. Braz. J. Genet.19617620Google Scholar
  23. Nassar, N.M.A. 1997Development of cassava interspecific hybrids for savanna (cerrado) conditionsJ. Root Crops22917Google Scholar
  24. Nassar, N.M.A., Vieira, M.A., Vieira, C., Grattapaglia, D. 1998Molecular and embryonic evidence of apomix in cassava interspecific hybrids (Manihot spp.)Can J. Plant Sci.78348352Google Scholar
  25. Nassar, N.M.A., Vieira, M.A., Vieira, C., Grattapaglia, D. 1998Molecular and embryonic evidence of apomix in cassava (Manihot esculenta Crantz)Euphytica102913CrossRefGoogle Scholar
  26. Nassar, N.M.A., Vieira, M.A., Vieira, C., Grattapaglia, D. 1998Evidence of apomixis in cassava (Manihot esculenta CrantzGenet. Biol.21527530Google Scholar
  27. Nassar, N.M.A. 1999CassavaManihot esculenta Crantz genetic resources: Their collection, evaluation and manipulationAdv. Agro.69179230CrossRefGoogle Scholar
  28. Nassar, N.M.A. 2000Wild cassavaManihot spp.: biology and potentialities for genetic improvementGenet. Mol. Biol.23201212Google Scholar
  29. Nassar, N.M.A. 2000The transference of apomixis genes from Manihot neusana Nassar to cassavaM esculents CrantzHereditas132167170CrossRefGoogle Scholar
  30. Rogers, D.J., Appan, S. 1973ManihotManihotoides. Flora Neotropica. Monograph No. 13Hafner PressNew YorkGoogle Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  1. 1.Departamento de Genetica e MorfologiaUniversidade de BrasiliaBrasiliaBrazil

Personalised recommendations