一只具有XXY性染色体组成的野生普通鼩鼱（Sorex araneus）。

A wild common shrew (Sorex araneus) with an XXY sex chromosome constitution.

作者信息

Searle J B

出版信息

J Reprod Fertil. 1984 Jan;70(1):353-6. doi: 10.1530/jrf.0.0700353.

DOI:10.1530/jrf.0.0700353

Abstract

An adult male common shrew with an XXY sex chromosome constitution was found in a natural population. The external appearance of the animal and size of the accessory glands were normal but the testes were as small as those of immature shrews. Histological preparations of the testis revealed seminiferous tubules containing only one type of cell, probably Sertoli cells, and interstitial cell hyperplasia.

摘要

在一个自然种群中发现了一只具有XXY性染色体组成的成年雄性普通鼩鼱。该动物的外观和附属腺大小正常，但睾丸与未成熟鼩鼱的睾丸一样小。睾丸的组织学切片显示，生精小管中仅含有一种细胞，可能是支持细胞，且间质细胞增生。