Fine-scale assessment of ROH patterns and genomic inbreeding in diverse horse breeds using two SNP array densities

We identified genomic regions with high ROH coverage so called ROH islands that may reflect recent selection events. Several chromosomes, including ECA7 and ECA11, contained large ROH islands that include genes associated with important traits such as pigmentation, fertility, and performance. These ROH islands represent genomic footprints of past selection events and serve as candidate regions for future functional and association studies.