Identification of candidate genomic regions for chicken egg number traits based on genome-wide association study.

ABSTRACT:

Background

Since the domestication of chicken, various breeds have been developed for food production, entertainment, and so on. Compared to indigenous chicken breeds which generally do not show elite production performance, commercial breeds or lines are selected intensely for meat or egg production. In the present study, in order to understand the molecular mechanisms underlying the dramatic differences of egg number between commercial egg-type chickens and indigenous chickens, we performed a genome-wide association study (GWAS) in a mixed linear model.

Results

We obtained 148 single nucleotide polymorphisms (SNPs) associated with egg number traits (57 significantly, 91 suggestively). Among them, 4 SNPs overlapped with previously reported quantitative trait loci (QTL), inc

SUBMITTER: Zhao X 

PROVIDER: S-EPMC8356427 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature