Jin Li is a Chinese geneticist who led the research that concluded that all East Asians, including the Chinese, originated from Africa, adding support to the Recent single-origin hypothesis of which he is considered a leading proponent. His team analyzed the Y chromosomes of males around China and compared this group with those of Southeast Asians and Africans. Wikipedia
The definitive Wikipedia entry for Jin Li. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Jin_Li