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    Development of a West African yam Dioscorea spp. core collection

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    Mahalakshmi-development-2007.pdf (175.3Kb)
    Date
    2007
    Author
    Mahalakshmi, V.
    Ng, Q.
    Atalobhor, J.
    Ogunsola, D.
    Lawson, M.
    Ortiz, R.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    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.
    http://dx.doi.org/10.1007/s10722-006-9203-4
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3138
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1007/s10722-006-9203-4
    IITA Subjects
    Yam; Plant Breeding; Research Method; Genetic Improvement
    Agrovoc Terms
    Breeding; Dioscorea; Ex Situ Conservation; Genebank; Genetic Resources; Sampling
    Regions
    Africa; West Africa; Central Africa
    Countries
    Benin; Nigeria; Burkina Faso; Congo; Cote D'Ivoire; Equatorial Guinea; Gabon; Ghana; Guinea; Sierra Leone; Togo
    Collections
    • Journal and Journal Articles4835
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