KAPPA-CASEIN POLYMORPHISMS AMONG CATTLE BREEDS AND BISON HERDS

We identified the HindIII restriction site polymorphism Of kappa-casei n in cattle reported by Pinder et al. (Animal Genetics 22, 11, 1991) a nd found an additonal polymorphism (RsaI) in cattle and bison. The Hin dIII and Rsa I restriction sites were mapped and three haplotypes (al leles) were identified. Preliminary screening of 39 cattle and 71 biso n revealed one allele restricted to cattle, one restricted to bison, a nd one shared by the species. No fixed allelic differences were observ ed among cattle breeds or among bison herds or subspecies.