title: Recombination between the S and the H blood group loci in pigs.
abstract: The investigation of A-O blood group phenotypes in selected pig families confirms the existence of an S locus which specifically controls the expression of A and O alloantigens. Forty-five informative litters were scored for linkage between the S gene and the H blood group locus. The recombination frequency in 345 offspring was estimated to be 9.56% (33 cross-overs). Specific difficulties involved in the determination of A-O and H phenotypes and the importance of S and H polymorphisms for the determination of Hal genotypes are discussed.
mesh_terms: D000818:Animals; D001789:Blood Group Antigens / Q000235:genetics*; D005260:Female; D008040:Genetic Linkage; D008297:Male; D010641:Phenotype; D011110:Polymorphism, Genetic; D011995:Recombination, Genetic; D013552:Swine / Q000097:blood* / Q000235:genetics
chemical_list: D001789:Blood Group Antigens