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How continents shaped human culture

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Thaimon
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« on: October 09, 2011, 08:18:21 pm »

“It’s harder to traverse those distances based on climate than it was in Eurasia,” Ramachandran said. “We find greater genetic differences (in the Americas’ populations) because of the difficulty in migration and the increased challenge of reuniting with neighbouring populations.”

“Our result that genetic differentiation increases more with latitudinal distance between Native American populations than with longitudinal distance between Eurasian populations supports the hypothesis of a primary influence for continental axes of orientation on the diffusion of technology in Eurasia and the Americas,” the authors conclude.
More information:

Sohini Ramachandran Lab at Brown University

American Journal of Physical Anthropology

A test of the influence of continental axes of orientation on patterns of human gene flow (2011)  Sohini Ramachandran, Noah A. Rosenberg:  Article first published online: 13 SEP 2011,  DOI: 10.1002/ajpa.21533
Stanford Report, February 27, 2008  Human family tree drawn by gene sequencing efforthttp://www.pasthorizonspr.com/index.php/archives/10/2011/how-continents-shaped-human-culture
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