Penn Anthropologists Clarify Link Between Asians and Early Native Americans

A tiny mountainous region in southern Siberia may have been the genetic source of the earliest Native Americans, according to new research by a University of Pennsylvania-led team of anthropologists. Lying at the intersection of what is today Russia, Mongolia, China and Kazakhstan, the region known as the Altai "is a key area because it's a place that people have been coming and going for thousands and thousands of years," said Theodore Schurr , an associate professor in Penn's Department of Anthropology. Schurr, together with doctoral student Matthew Dulik and a team of graduate students and postdoctoral researchers, collaborated on the work with Ludmila Osipova of the Institute of Cytology and Genetics in Novosibirsk, Russia. Among the people who may have emerged from the Altai region are the predecessors of the first Native Americans. Roughly 20-25,000 years ago, these prehistoric humans carried their Asian genetic lineages up into the far reaches of Siberia and eventually across the then-exposed Bering land mass into the Americas. "Our goal in working in this area was to better define what those founding lineages or sister lineages are to Native American populations," Schurr said. The team's study, published in the American Journal of Human Genetics , analyzed the genetics of individuals living in Russia's Altai Republic to identify markers that might link them to Native Americans.