Genomic prediction of beef quality using GWAS-prioritized markers.

ABSTRACT: Tenderness and marbling are key carcass quality traits in beef cattle that strongly influence consumer eating satisfaction and repeat purchasing behavior. Because both traits are measured postmortem, they are difficult to incorporate into routine selection programs. Genomic selection therefore provides a practical strategy to improve these traits. This study evaluated the effectiveness of GWAS-informed SNP preselection for predicting Warner-Bratzler shear force (WBSF) and marbling breeding values using reduced marker densities in Brangus cattle. Using a structured population (N = 1066), we conducted a 10-fold cross-validation with SNP subsets ranked by GWAS significance and compared them to 10 random SNP subsets of the same number and full SNP panel. External validation was performe

SUBMITTER: Zayas GA 

PROVIDER: S-EPMC12861978 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature