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    Genome-wide association analyses reveal the genetic basis of biomass accumulation under symbiotic nitrogen fixation in African soybean

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    S20ArtTorkamanehGenomewideInthomNodev.pdf (1.534Mb)
    Date
    2020-02
    Author
    Chalifour, F.P.
    Torkamaneh, D.
    Beauchamp, C.J
    Agrama, H.
    Boahen, S.
    Maaroufi, H.
    Rajcan, I.
    Belzile, F.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Symbiotic nitrogen fixation (SNF) increases sustainability by supplying biological nitrogen for crops to enhance yields without damaging the ecosystem. A better understanding of this complex biological process is critical for addressing the triple challenges of food security, environmental degradation, and climate change. Soybean plants, the most important legume worldwide, can form a mutualistic interaction with specialized soil bacteria, bradyrhizobia, to fix atmospheric nitrogen. Here we report a comprehensive genome-wide association study of 11 SNF-related traits using 79K GBS-derived SNPs in 297 African soybeans. We identified 25 QTL regions encompassing 40 putative candidate genes for SNF-related traits including 20 genes with no prior known role in SNF. A line with a large deletion (164 kb), encompassing a QTL region containing a strong candidate gene (CASTOR), exhibited a marked decrease in SNF. This study performed on African soybean lines provides fundamental insights into SNF-related traits and yielded a rich catalog of candidate genes for SNF-related traits that might accelerate future efforts aimed at sustainable agriculture.
    https://dx.doi.org/10.1007/s00122-019-03499-7
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7696
    IITA Authors ORCID
    Stephen Boahen Asaberehttps://orcid.org/0000-0001-8946-401X
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1007/s00122-019-03499-7
    Research Themes
    Plant Production and Health
    IITA Subjects
    Agronomy; Climate Change; Food Security; Genetic Improvement; Grain Legumes; Plant Breeding; Plant Health; Plant Production; Soybean
    Agrovoc Terms
    Genetics; Nitrogen Fixation; Genes; Breeding; Soybeans
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Theoretical and Applied Genetics
    Collections
    • Journal and Journal Articles4835
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