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    Gene pool subdivision of east African sweetpotato parental material

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    U18ArtDavidGenepoolInthomDev.pdf (1002.Kb)
    Date
    2018-11
    Author
    David, M.C.
    Díaz, F.C.
    Mwanga, R.O.M.
    Tumwegamire, S.
    Mansilla, R.C.
    Gruneberg, W.J.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Sweetpotato [Ipomoea batatas (L.) Lam] breeding is important for food security and health in East Africa (EA), and a breeding platform in Uganda provides national researchers and breeders in EA with true seed. Our objectives were to characterize genetic relationships among parental material used at the EA breeding platform. There were 135 parents and six check clones analyzed using 31 simple sequence repeat primers. An average of 7.13 alleles per primer was found, and Jaccard similarity coefficients were in the range of 0.298 to 1.00 with a mean of 0.542. Unweighted pair group cluster analysis placed most African parents in two main subclusters showing no association with morphology or geographical origin. The subclusters were also supported by principal coordinate analysis, derivative analysis of principal components, and population structure simulations. The analyzed breeding material from EA was highly genetically variable, grouped in two distinct genetic pools, and suitable to study heterosis exploiting breeding schemes.
    http://dx.doi.org/10.2135/cropsci2017.11.0695
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4938
    Non-IITA Authors ORCID
    Robert Mwangahttps://orcid.org/0000-0003-4405-2745
    Silver Tumwegamirehttps://orcid.org/0000-0003-2820-6337
    Wolfgang Gruneberghttps://orcid.org/0000-0002-8306-6704
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.2135/cropsci2017.11.0695
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Genetic Improvement; Plant Breeding; Plant Genetic Resources
    Agrovoc Terms
    Sweet Potatoes; Food Security; Plant Breeding; Uganda; East Africa
    Regions
    Africa; East Africa
    Countries
    Uganda
    Journals
    Crop Science
    Collections
    • Journal and Journal Articles4835
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