Abstract
Yams (Dioscorea spp.) are important crops in some West African locations. The West African yam collections held at the IITA were characterized using the standard descriptor list for this crop (IPGRI/IITA. 1997. Descriptors for yam (Dioscorea spp.). International Institute of Tropical Agriculture, Ibadan, Nigeria/International Plant Genetic Resources Institute, Rome, Italy) to assess the extent of diversity and develop a core collection employing 77 out of 86 descriptors and the Shannon–Weaver diversity index. The core collection consists of 391 accessions (13% of entire collection). It represents all the six cultivated and two wild Dioscorea taxa. The appropriateness of the procedure was confirmed by comparing the mean and diversity distributions of 11 (out of 13) quantitative traits. This article explains the relevance of this core collection of yams for West Africa yam cropping and improvement.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Dumont R, Vernier P (2000) Domestication of yams (D. cayenensis/D. rotundata) within the Bariba ethnic group in Benin. Outlook Agric 29:137–142
FAO (2004) FAO Production Year Book. Food and Agriculture Organization of the United Nations, Rome
Gomez KA, Gomez AA (1984) Statistical Procedures for Agricultural Research. 2nd ed. John Wiley & Sons, New York
Hahn SK (1995) Yams: Dioscorea spp. (Dioscoreaceae). In: Smartt J, Simmonds NW (eds) Evolution of crop plants. Longman Scientific & Technical, Harlow, England, pp 112–120
IPGRI/IITA (1997) Descriptors for Yam (Dioscorea spp.). International Institute of Tropical Agriculture, Ibadan, Nigeria/International plant genetic resources institute, Rome, Italy
Little TM, Hills FJ (1978) Agricultural experimentation–design and analysis. John Wiley and Sons, New York
Mignouna HD, Abang MM, Green KR, Asiedu R (2001a) Inheritance of resistance in water yam (Dioscorea alata) to anthracnose (Colletotrichum gloeosporioides). Theor Appl Genet 103:52–55
Mignouna HD, Abang MM, Onasanya A, Asiedu R (2002d) Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata). Ann Appl Biol 141:61–66
Mignouna HD, Abang MM, Onasanya A, Agindotan B, Asiedu R (2002e) Identification and potential use of RAPD markers linked to yam mosaic virus resistance in white yam (Dioscorea rotundata Poir.). Ann Appl Biol 140:163–169
Mignouna HD, Dansi A, Zok S (2002a) Morphological and isozymic diversity of the cultivated yams (Dioscorea cayanensis/D. rotundata complex) of Cameroon. Genet Resour Crop Evol 49:21–29
Mignouna HD, Ellis TNH, Knox M, Asiedu R, Ng QN (1998) Analysis of genetic diversity in Guinea yams. (Dioscorea spp.) using AFLP fingerprinting. Trop Agric (Trinidad) 75:224–299
Mignouna HD, Mank RA, Ellis TNH, van den Bosch N, Asiedu R, Abang MM, Peleman J (2002b) A genetic linkage map of water yam (Dioscorea alata L.) based on AFLP markers and QTL analysis for anthracnose resistance. Theor Appl Genet 105:726–735
Mignouna HD, Mank RA, Ellis TNH, van den Bosch N, Asiedu R, Ng SYC, Peleman J (2002c) A genetic linkage map of Guinea yam (Dioscorea rotundata Poir.) based on AFLP markers. Theor Appl Genet 105:716–725
Mignouna HD, Njukeng P, Abang MM, Asiedu R (2001b) Inheritance of resistance to Yam Mosaic Virus, genus Potyvirus, in white yam (Dioscorea rotundata). Theor Appl Genet 103:1196–1200
Ortiz R, Dochez C, Moonan F, Asiedu R (2006). Breeding vegetatively propagated crops. In: Lamkey K, Lee M (eds) Plant Breeding. Blackwell Publishing, Ames, Iowa, pp 251–268
SAS (1989) SAS/SAT User Guide version 6. 4th edn. SAS Institute Inc., Cary, North Carolina
Shannon CE, Weaver W (1949) The Mathematics Theory of Communication. Univ. Illinois Press, Urbana
Ward JH (1963) Hierarchical grouping to optimize an objective function. J Amer Stat Ass 58:236–244
Author information
Authors and Affiliations
Corresponding author
Additional information
An erratum to this article is available at http://dx.doi.org/10.1007/s10722-007-9236-3.
Rights and permissions
About this article
Cite this article
Mahalakshmi, V., Ng, Q., Atalobhor, J. et al. Development of a West African yam Dioscorea spp. core collection. Genet Resour Crop Evol 54, 1817–1825 (2007). https://doi.org/10.1007/s10722-006-9203-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10722-006-9203-4