Predicting the purebred-crossbred genetic correlation from the genetic variance components in the parental lines.

ABSTRACT:

Background

The genetic correlation between purebred and crossbred performance ([Formula: see text]) is an important parameter in pig and poultry breeding, because response to selection in crossbred performance depends on the value of [Formula: see text] when selection is based on purebred (PB) performance. The value of [Formula: see text] can be substantially lower than 1, which is partly due to differences in allele frequencies between parental lines when non-additive genetic effects are present. This relationship between [Formula: see text] and parental allele frequencies suggests that [Formula: see text] can be expressed as a function of genetic parameters for the trait in the parental lines. In this study, we derived expressions for [Formula: see text] based on genetic variance

SUBMITTER: Duenk P 

PROVIDER: S-EPMC7860586 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature