On the inverse association between the number of QTL and the trait-specific genomic relationship of a candidate to the training set.

Abstract excerpt

BACKGROUND: Accuracy of genomic prediction depends on the heritability of the trait, the size of the training set, the relationship of the candidates to the training set, and the Min ( N QTL , M e ) , where N QTL is the number of QTL and M e is the number of independently segregating chromosomal segments. Due to LD, the number Q e of independently segregating QTL (effective QTL) can be lower than Min ( N QTL , M...

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