The Q- and G-banding patterns of a t(p+; 15q-) in the domestic pig

Localization of fragile sites in the karyotype of Sus scrofa domestica: present status

Fragile sites were induced to expression in pig lymphocyte chromosomes by in vitro exposure to folate antagonists and BUdR-Hoechst 33258. Expressed fragility was localized according to the presented idiograms and compared with the location of known spontaneous translocations.

Translocation heterozygosity in a malformed piglet and its normal littermates

A translocation with centric fusion between the Nos. 13 and 17 acrocentric chromosomes was described in a malformed female piglet and three phenotypically normal littermates by the G-banding staining technique. Since the translocation was heterozygous, the chromosome number was 37. The differences between the translocation of the present cases and those previously reported in the domestic swine species, as well as in some wild pigs, are mentioned.