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Native Americans May Possess Trekked From Siberia
FRIDAY, Jan. 27 (HealthDay News) -- The earliest Native Americans may possess originated in a tiny mountainous region in southern Siberia called the Altai, according to anthropologists. The Altai is at the intersection of Russia, Mongolia, China as well as Kazakhstan as well as "is a key area because it's a place that people possess been coming as well as going for thousands as well as thousands of years," Theodore Schurr, an associate professor in the anthropology department at the University of Pennsylvania, said in a university news release.
He as well as his colleagues conducted genetic analyses of people existing in the Altai as well as compared them to Native Americans. They found unique mutations shared by both groups. The researchers calculated how extended these mutations took to arise as well as estimated that the Altai people diverged genetically from Native Americans 13,000 to 14,000 years ago. That fits with the idea of people moving from Siberia into the Americas between 15,000 as well as 20,000 years ago, they said in the news release. It's likely as well as even likely that more than one wave of people crossed the ancient land bridge that linked Siberia with North America. But, the Altai is the only geographic focal point from which Native Americans can trace their heritage, according to Schurr. "It may change with more data from other groups, but, so far, even with intensive work in Mongolia, they're not seeing the alike things that we are," he said. This class of investigation could prove useful in terms of biomedical research. For example, both Siberian as well as Native Americans "seem susceptible to Westernization of diet as well as moving away from traditional diets, but their responses in terms of blood pressure as well as overweight metabolism actually differ," Schurr said. A combination of genetics research as well as traditional material anthropology may help researchers learn more about the factors behind these differences. The study was published Jan. 26 in the American Journal of Human Genetics. -- Robert Preidt  Copyright © 2012 HealthDay. All rights reserved.
SOURCE: University of Pennsylvania, news release, Jan. 26, 2012
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