If you enjoyed my post on the evolution of sex chromosomes in tetrapods, you should check out Darwin Central for even more. It starts with the story of the vole, and goes into how mammalian sex chromosomes have evolved and what we can expect in the future.
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A few months ago I wrote the following:
I should point out that the mammalian Y chromosome is an anomaly in origin and sex determination. In fact, every single sex determination system and sex chromosome system that I know of differs from all of the others in some manner. It looks like I'm going to…
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Thanks for the cite! I read your September 8th post and am now heading off to read Current Biology. Genetics is not my area of expertise, but I find it a fascinating topic and have been doing an increasing amount of reading in this area lately.