title: A contribution to the D system in horses.
abstract: The inheritance of a new D system red cell antigen, factor 22, is described. It has also been possible to discriminate more efficiently between D system phenogroups enabling genotypes to be identified from phenotypes in the majority of cases. This improves the accuracy of animal identification and gene frequency estimates.
mesh_terms: D000818:Animals; D001789:Blood Group Antigens / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006736:Horses / Q000097:blood*; D008297:Male; D010641:Phenotype
chemical_list: D001789:Blood Group Antigens