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    Comparison of DNA marker and pedigreebased methods of genetic analysis in plantain and banana (Musa spp.) clones; II: predicting hybrid performance

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    tenkouano-comparison-estimation-1999.pdf (143.6Kb)
    Date
    1999
    Author
    Tenkouano, A.
    Crouch, J.
    Crouch, H.
    Vuylsteke, D.
    Ortiz, R.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Pedigree and DNA marker-based methods were used to predict the performance of triploid progeny from tetraploid-diploid crosses, based on parental heterozygosity, genetic relatedness, and expected contribution to their progeny. There was no significant correlation between parental and progeny performance. Prediction of progeny bunch weight was best when based on genealogical distance and equal parental contribution. Predicted fruit size was most accurate when DNA marker data were used and the assumption of an unequal parental contribution was made. Consideration of parental heterozygosity produced larger residuals for all traits. No statistically significant differences were found between the mean residuals obtained under the assumption of an equal vs an unequal contribution of the 4x and 2x genotypes to their 3x progeny, regardless of the method used to estimate genetic relationships.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3652
    IITA Subjects
    Plant Breeding; Plant Production; Farm Management; Genetic Improvement; Plant Genetic Resources; Domestic Trade; Livelihoods; Smallholder Farmers; Plant Diseases; Pests Of Plant
    Agrovoc Terms
    Genealogical Relationships; Genetic Markers; Non-Additive Inheritance; Parental Selection; Secondary Triploid Hybrids; Genetic; Parental Heterozygosity
    Regions
    Africa; Acp; West Africa; Europe
    Countries
    Nigeria; United Kingdom; Denmark
    Collections
    • Journal and Journal Articles4835
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