I wonder what exactly this guy is referring to in this quote:
...says Rasmus Nielsen of the University of California, Berkeley. “One of the exciting things about having so many sequences from Chinese individuals is that we will be able to say how much genetic exchange there has been between continents since [early humans migrated] out of Africa. That's been very hotly debated.”Genomics sizes up: China launches large-scale human sequencing initiative.
Jane Qiu & Erika Check Hayden
Nature 451, 234 (2008) Published online 16 January 2008