Structure of the Orlov's trotters populations on pigment formation loci MCIR and Tyr, and paint phenotypes

The authors performed the comparative analysis of genotypes distribution on loci MCIR and Tyr, and paint phenotypes on three stud farms for breeding of the Orlov's trotters (Shadrinskii, Permskii and Altaiskii). Differentiation on the frequency of genotypes and phenotypes in horses from different stud farms was revealed. The reliable relationship between phenotypes distribution on paint and genotypes distribution on loci MCIR and Tyr was detected.