Newly published research in Nature sheds new light on human
ancestry on the basis of a genomic analysis of a leg bone (femur)
from a Russian riverbank.  The bone is estimated to be between
43,000-47,000 years old (point estimate 45K) and, though it
contains the same amount of Neanderthal DNA as current
non-African humans (i.e., 2%), the sequences are longer implying
that humans and Neanderthals "interacted" (i.e., did the "nasty")
about 50,000-60,000 years ago or about 5-15K years before
the guy's whose leg bone we have.  Previously, the time interval
was estimated to be 37,000-86,000 years ago.

For more on this topic, Scientific American has an article for
the general public; see:
http://www.scientificamerican.com/article/45-000-year-old-mans-genome-sequenced/
which is based on/copied from Nature; see:
http://www.nature.com/news/oldest-known-human-genome-sequenced-1.16194

The original research article is available on the Nature website:
http://www.nature.com/nature/journal/v514/n7523/full/nature13810.html
However, this is behind a paywall, so you'd probably have to get via
your institution if you don't subscribe to "Nature".

-Mike Palij
New York University
[email protected]



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