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Men can rest easy - sex chromosomes are here to stay
Date:5/8/2012

r breeds. At the same time, relaxed female selection in the fighting and plumage breeds has led to a loss of W gene expression.

This means that female-specific selection related to fertility acts to shape the W chromosome, and that the chromosome is able to respond to that selection despite all the problems with the lack of recombination.

Professor Mank said: "We have shown that Y and W chromosomes are very important in fertility the Y in males and the W in females. It is the ability of the W-linked genes to evolve that is the key to their survival, and which suggests that both the Y and the W chromosomes are with us for the long haul."


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Contact: Clare Ryan
clare.ryan@ucl.ac.uk
44-020-310-83846
University College London
Source:Eurekalert

Page: 1 2

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