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    AFLP marker diversity in water yam (Dioscorea alata L.)

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    S06ArtEgesiAflpNothomDev.pdf (1.651Mb)
    Date
    2006
    Author
    Egesi, Chiedozie N.
    Asiedu, Robert
    Ude, G.
    Ogunyemi, S.
    Egunjobi, J.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Amplified fragment length polymorphism (AFLP) markers were employed to assess intraspecific variability in water yam (Dioscorea alata L.). Fifty-three accessions of diverse geographic origins in West and Central Africa (Benin, Côte d'Ivoire, Ghana, Nigeria and Chad) and Puerto Rico were analysed using three AFLP primer combinations. Of the 342 amplification products generated, a mean of 53.4% were polymorphic. Genetic similarity coefficients ranged from 0.29 to 0.95. The accessions could be clustered into three major genetic groups with one outlier. Each group was a mixture of accessions of different geographical origin indicating that geography has not played a major role in the differentiation of the species. A few accessions clustered very tightly suggesting that there may be duplicate accessions in the collection. The wide genetic variation observed constitutes a good basis for genetic improvement of yam.
    http://dx.doi.org/10.1079/PGR2006121
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3246
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1079/PGR2006121
    IITA Subjects
    Yam; Genetic Improvement; Plant Breeding
    Agrovoc Terms
    Amplified Fragment Length Polymorphism; Dioscorea Alata; Dna Fingerprinting; Genetic Variability; Water Yam
    Regions
    Africa; Acp; West And Central Africa; North America
    Countries
    Benin; Cote D'Ivoire; Nigeria; Ghana; Chad; Puerto Rico
    Collections
    • Journal and Journal Articles4835
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