Jumping genes strengthen the mammalian Y chromosome

news-medical.net

Jumping genes have been found to help strengthen the mammalian Y chromosome, crucial for male fertility. Researchers discovered a gene family, Phf8y, in deer mice that moved from the X chromosome to an autosome, and then to the Y chromosome, duplicating itself. This process, involving transposable elements, may help the Y chromosome persist and maintain the male to female sex ratio in populations.


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