Genome-wide association study to identify genomic regions and positional candidate genes associated with male fertility in beef cattle.

ABSTRACT: Fertility plays a key role in the success of calf production, but there is evidence that reproductive efficiency in beef cattle has decreased during the past half-century worldwide. Therefore, identifying animals with superior fertility could significantly impact cow-calf production efficiency. The objective of this research was to identify candidate regions affecting bull fertility in beef cattle and positional candidate genes annotated within these regions. A GWAS using a weighted single-step genomic BLUP approach was performed on 265 crossbred beef bulls to identify markers associated with scrotal circumference (SC) and sperm motility (SM). Eight windows containing 32 positional candidate genes and five windows containing 28 positional candidate genes explained more than 1% of the genet

SUBMITTER: Sweett H 

PROVIDER: S-EPMC7676258 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature