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    Genetic diversity of physical, nutritional and functional properties of cowpea grain and relationships among the traits

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    Date
    2016-03-15
    Author
    Muranaka, S.
    Shono, M
    Myoda, T.
    Takeuchi, J.
    Franco, J.
    Nakazawa, Y.
    Boukar, O.
    Takagi, H.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Cowpea is traditionally important as an affordable source of protein and minerals and of cash income in sub-Saharan Africa, especially for small-scale farmers who have limited options for food and cash crops. The development and deployment of cowpea varieties with improved nutrition and quality that meet the needs of farmers and consumers should enhance cowpea consumption and production in the region. We have identified genetic diversity in various grain quality-related traits of cowpea and relationships among the traits. Wide genetic variation and strong correlations among crude protein, Fe and Zn contents suggest the possibility of improving the concentrations of these nutritional factors simultaneously. Low associations among physical and nutritional properties of grain indicate the possibility of introgressing favorable traits utilizing identified genetic resources. However, narrow variation in amino acid (AA) composition suggests a lesser possibility of improving the contents of specific AAs in cowpea, but it gave a reliable nitrogen-to-protein conversion factor of 5.45 for the estimation of crude protein content. Several improved breeding lines were identified with low concentrations of flatulence-causing oligosaccharides and various favorable agronomic traits and nutrient contents. TVu-12802 had the highest contents of crude protein and high contents of micronutrients, with a low ratio of phytic acid to Fe and Zn contents.
    https://dx.doi.org/10.1017/s147926211500009x
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1167
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1017/s147926211500009x
    IITA Subjects
    Cowpea
    Agrovoc Terms
    Cowpeas; Nutritional Value; Grain Legumes
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Plant Genetic Resources
    Collections
    • Journal and Journal Articles4835
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