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    Breeding cowpea for resistance to striga gesnerioides in the Nigerian dry savannas using marker-assisted selection

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    S17ArtOmoiguiBreedingInthomDev.pdf (769.2Kb)
    Date
    2017-04
    Author
    Omoigui, L.O.
    Kamara, A.Y.
    Moukoumbi, Y.D.
    Ogunkanmi, L.A.
    Timko, M.P.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Historically, conventional breeding has been the primary strategy used to develop a number of Striga-resistant varieties currently grown in the Sahel of Western Africa. In this study, we have successfully developed and applied a marker-assisted selection strategy that employs a single backcross programme to introgress Striga resistance into farmer preferred varieties of cowpea for the Nigeria savannas. In this strategy, we have introduced the Striga resistance gene from the donor parent IT97K-499-35 into an elite farmer preferred cowpea cultivar ‘Borno Brown’. The selected 47 BC1F2 populations confirmed the recombinants with desirable progeny having Striga resistance gene(s). The 28 lines selected in the BC1F2:4 generation with large seed size, brown seed coat colour and carrying marker alleles were evaluated in the field for resistance to Striga resistance. This led to the selection of a number of desirable improved lines that were immune to Striga having local genetic background with higher yield than those of their parents and standard varieties.
    http://dx.doi.org/10.1111/pbr.12475
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1829
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1111/pbr.12475
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Cowpea; Grain Legumes; Plant Breeding
    Agrovoc Terms
    Striga Gesnerioides; Cowpeas; Resistance; Molecular Marker; Marker-Assisted Selection; Breeding
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Plant Breeding
    Collections
    • Journal and Journal Articles5283
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