Is there an advantage of using genomic information to estimate gametic variances and improve recurrent selection in animal populations?

ABSTRACT:

Background

Gametic variances can be predicted from the outcomes of a genomic prediction for any genotyped individual. This is widely used in plant breeding, applying the utility criterion (UC). This paper aims to examine the conditions to use UC for recurrent selection in livestock. Here, the UC for a selection candidate is the linear combination of the expected value of the future progeny (half of the candidate's breeding value) and its predicted gametic variance weighted by a coefficient θ to be optimized.

Results

First, generalizing previous results, we derived analytically the ratio of the variance of the candidate's gametic variance and that of half of the candidate's breeding value. This ratio depends strongly on the number of quantitative trait loci (QTL) affecting th

SUBMITTER: Elsen JM 

PROVIDER: S-EPMC11831845 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature