title: Double reciprocal translocation heterozygosity in a bull.
abstract: A double reciprocal translocation has been found in a morphologically normal but infertile bull (Bos taurus), using trypsin-Giemsa banding. The karyotype of the bull can be written as: 60,XY,t(2q-;20q+),t(8q-;27q+). Cytophotometric studies supported the findings in the karyograms and identified the breakpoints in the chromosomes involved. The possible effect of this translocation heterozygosity on male fertility is discussed.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000235:genetics*; D006579:Heterozygote; D007248:Infertility, Male / Q000235:genetics / Q000662:veterinary*; D007621:Karyotyping / Q000662:veterinary; D008297:Male; D013094:Spermatozoa / Q000002:abnormalities; D014178:Translocation, Genetic