An unusual paternity test in dogs

We are solving disputed paternities in purebred dogs using microsatellite a nalysis. An interesting case involved four puppies for which pedigrees were already issued by the Swiss Kennel Club. The investigation had to be carri ed out without a sample from the stated sire: Even though the relationship of this site could not be determined conclusively, comparison of microsatel lite alleles within this family, including an alleged half-brother of the f our puppies, showed clearly that the breeder had made contradictory stateme nts and that false recordings of matings had occurred. The pedigrees for th ese four puppies were withdrawn and sanctions against the breeder were impo sed.