Gametic gene flow method accounts for genomic imprinting and inbreeding

Abstract

Findings within the last fifteen years emphasise the possible role of genomic imprinting for trait expression in livestock species. In genetic evaluation, genomically imprinted traits can be treated by models with two different breeding values per animal; one accounts for the paternal and the other for the maternal expression pattern. Relative weighting factors for these breeding values were derived by a generalised version of the discounted gene flow method, which was extended to a gametic level to account for parent-of-origin effects.