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    Morphological and isozymic diversity of the cultivated yams (Dioscorea cayenensis/Dioscorea rotundata complex) of Cameroon

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    Date
    2002
    Author
    Mignouna, H.D.
    Dansi, A.
    Zok, S.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Using IPGRI's descriptors, 45 accessions of Guinea yams (Dioscorea cayenensis Lam./ Dioscorea rotundata Poir. complex) collected in Cameroon were classified into six cultivar groups based on their morphological similarities. An identification key is proposed for the cultivar groups. Six enzymatic systems (6PGD, PGI, AAT, SKDH, PGM, EST) were also used to assess genetic variation within these cultivated yams. Twenty-eight genotypes were identified within the 45 accessions analysed. The clustering of accessions based on isozyme data is very close to the one obtained using morphological characters.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5366
    IITA Subjects
    Yam
    Agrovoc Terms
    Cultivars; Dioscorea Cayenensis; Dioscorea Rotundata; Yams
    Regions
    Africa; Central Africa
    Countries
    Cameroon
    Collections
    • Journal and Journal Articles4842
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