Analysis of polygenic selection in purebred and crossbred pig genomes using generation proxy selection mapping.

ABSTRACT:

Background

Artificial selection on quantitative traits using breeding values and selection indices in commercial livestock breeding populations causes changes in allele frequency over time at hundreds or thousands of causal loci and the surrounding genomic regions. In population genetics, this type of selection is called polygenic selection. Researchers and managers of pig breeding programs are motivated to understand the genetic basis of phenotypic diversity across genetic lines, breeds, and populations using selection mapping analyses. Here, we applied generation proxy selection mapping (GPSM), a genome-wide association analysis of single nucleotide polymorphism (SNP) genotypes (38,294-46,458 markers) of birth date, in four pig populations (15,457, 15,772, 16,595 and 8447 pigs pe

SUBMITTER: Grohmann CJ 

PROVIDER: S-EPMC10500877 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature