An XXY sex chromosome constitution in a house musk shrew (Suncus murinus L.) with testicular hypoplasia

J Reprod Fertil. 1998 May;113(1):91-3. doi: 10.1530/jrf.0.1130091.


An adult male house muck shrew with an XXY sex chromosome constitution was found in a laboratory-bred colony. Maternal origin of the additional X chromosome was demonstrated. The external appearance of the animal was normal, but the testes were small and displayed a high density of interstitial cells. The seminiferous tubules were narrow and contained only Sertoli cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Male
  • Organ Size
  • Seminiferous Tubules / abnormalities
  • Seminiferous Tubules / pathology
  • Sex Chromosome Aberrations / pathology*
  • Shrews / genetics*
  • Testis / abnormalities*
  • Testis / pathology
  • X Chromosome*