Genes associated with the polymorphic loci in Mongolian and Tibetan, but fixed in Thoroughbred, Standardbred, Quarter Horse, and Arabian.

Genes associated with the polymorphic loci in Mongolian and Tibetan, but fixed in Thoroughbred, Standardbred, Quarter Horse, and Arabian.与蒙古马和藏马的多态位点（polymorphic loci）相关联的基因，且该类基因在纯血马、标准马、美国夸特马以及阿拉伯马中均为固定状态。