Genomic mating in outbred species: predicting cross usefulness with additive and total genetic covariance matrices.

ABSTRACT: Diverse crops are both outbred and clonally propagated. Breeders typically use truncation selection of parents and invest significant time, land, and money evaluating the progeny of crosses to find exceptional genotypes. We developed and tested genomic mate selection criteria suitable for organisms of arbitrary homozygosity level where the full-sibling progeny are of direct interest as future parents and/or cultivars. We extended cross variance and covariance variance prediction to include dominance effects and predicted the multivariate selection index genetic variance of crosses based on haplotypes of proposed parents, marker effects, and recombination frequencies. We combined the predicted mean and variance into usefulness criteria for parent and variety development. We present an empir

SUBMITTER: Wolfe MD 

PROVIDER: S-EPMC8570794 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature