Article Text

Double reciprocal translocation heterozygosity in a bull
  1. GG De Schepper,
  2. JG Aalbers and
  3. JH Te Brake


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.

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