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J Reprod Fertil. 1998 May;113(1):91-3.

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

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  • 1Institute of Cytology and Genetics, Novosibirsk, Russia.


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.

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