Single- and multiple-locus model genome-wide association study for growth traits in Dongliao black pigs.

ABSTRACT:

Objective

Growth traits are one of the most important economic traits in pigs, including body weight and average daily gain. However, the available genetic markers for these traits are limited, especially concerning Chinese indigenous pigs and their hybrid breeds.

Methods

To identify SNP markers and candidate genes affecting body weight and average daily gain traits, we performed a genome-wide association study (GWAS) for these traits in 358 Dongliao black pigs using three single-locus and three multiple-locus models. All pigs were genotyped using the China Chip-1 porcine SNP50K BeadChip.

Results

The GWAS revealed 39 significant quantitative trait loci (QTLs) affecting body weight and average daily gain traits. Among these, 26 QTLs were significantly correlated with b

SUBMITTER: Sun K 

PROVIDER: S-EPMC12580961 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature