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Health

Ancient DNA in the near future

Gene ExpressionBy Razib KhanOctober 29, 2011 10:27 PM

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I recently inquired if anyone was sequencing Cheddar Man. In case you don't know, this individual died ~9,000 years ago in Britain, but the remains were well preserved enough that mtDNA was retrieved from him. He was of haplogroup U5, which is still present in the local region. Cheddar Man is also particularly interesting because he is definitely a Paleolithic hunter-gatherer, predating the Neolithic in Britain by thousands of years. It turns out that no one is looking at Cheddar Man now. But that's probably because money and time are finite. I was told that there are plenty of other specimens which would also probably be good candidates for sequencing in the Museum's collection (this doesn't seem to be a case where curators are being stingy and overprotecting of their specimens). That's not too surprising. We'll probably answer a lot of questions about the roles of demographic diffusion vs. cultural diffusion when it comes to agriculture soon enough (as in, over the next 10 years as techniques for getting signal out of old degraded and contaminated samples get better).

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