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Author Topic: Revised timescale of human mtDNA evolution (Fu et al. 2013)  (Read 1500 times)
Bren123
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« on: March 25, 2013, 01:47:28 PM »

March 22, 2013

An important new paper has just appeared in Current Biology. It is very exciting for a couple of reasons:


The paper uses the idea of branch shortening to infer dates for the mtDNA phylogeny. Briefly, if one counts differences between a present-day sample P and an ancient sample A, one can get a sense of when their most recent common ancestor X, lived. But PX and PA are not equal: PA is shorter, because A has "missed" a few thousand years of evolution (depending on its age). If we know the age of A (and this can be reliably known by direct dating for many samples), then we can infer the time of X.


http://dienekes.blogspot.co.uk/2013/03/revised-timescale-of-human-mtdna.html
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