Genome-wide association scan for heterotic quantitative trait loci in multi-breed and crossbred beef cattle

摘要

BackgroundHeterosis has been suggested to be caused by dominance effects. We performed a joint genome-wide association analysis (GWAS) using data from multi-breed and crossbred beef cattle to identify single nucleotide polymorphisms (SNPs) with significant dominance effects associated with variation in growth and carcass traits and to understand the mode of action of these associations.