A new type of pig-mink cell hybrids was produced. It was demonstrated
that segregation of pig chromosomes occurs in these hybrids and that n
o rearrangements between the chromosomes of different species occurs;
fragmentation of pig chromosomes is also absent. Using these hybrids,
genes TK1 and UMPH2 were preliminarily located on pig chromosome 12. T
he obtained data demonstrate that these hybrids can be used for chromo
some mapping of pig genes.