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    Ploidy variation in the cultivated yams (Dioscorea cayenensisDioscorea rotundata complex) from Cameroon as determined by flow cytometry

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    Date
    2001
    Author
    Dansi, A.
    Mignouna, H.
    Pillay, M.
    Zok, S.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The ploidy levels of the twenty-two yam (Dioscorea cayenensis-D. rotundata complex) cultivars within germplasm Cameroon Guinea yam were determined by flow cytometry. Three different ploidy levels (4x,6x, 8x) were detected within the samples analysed. Fifteen cultivars were tetraploids, five were hexaploids, and two were octoploids. The cultivar group EKOTO showed a high level of ploidy variation with tetraploid, hexaploid and octoploid cultivars. The hexaploid nature of cultivars Dobnawo and Bilougnou supported the hypothesis that they are hybrids between cultivars of the EKOTO group and either the KPE or BAKOKAE groups.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3720
    IITA Subjects
    Yam; Plant Breeding; Genetic Improvement; Plant Health; Plant Production; Diseases Control; Livelihoods; Food Security; Post-Harvesting Technology; Pests Of Plants; Plant Diseases; Plant Genetic Resources; Smallholder Farmers; Farm Management
    Agrovoc Terms
    Dioscorea Cayenensis-Dioscorea Rotundata Complex; Flow Cytometry; Ploidy Level; Yams; Genotypes; Chromosomes; Ploidy
    Regions
    Africa; West Africa; Central Africa
    Countries
    Benin; Nigeria; Cameroon
    Collections
    • Journal and Journal Articles4835
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