Genetic traces of east-to-west human expansion waves in Eurasia
Article first published online: 6 MAR 2008
Copyright © 2008 Wiley-Liss, Inc.
American Journal of Physical Anthropology
Volume 136, Issue 3, pages 309–317, July 2008
How to Cite
Chaix, R., Austerlitz, F., Hegay, T., Quintana-Murci, L. and Heyer, E. (2008), Genetic traces of east-to-west human expansion waves in Eurasia. Am. J. Phys. Anthropol., 136: 309–317. doi: 10.1002/ajpa.20813
- Issue published online: 6 JUN 2008
- Article first published online: 6 MAR 2008
- Manuscript Accepted: 19 DEC 2007
- Manuscript Received: 3 AUG 2007
- CNRS (project OHLL)
- European Science Foundation (project OMLL)
- Y chromosome
In this study, we describe the landscape of human demographic expansions in Eurasia using a large continental Y chromosome and mitochondrial DNA dataset. Variation at these two uniparentally-inherited genetic systems retraces expansions that occurred in the past 60 ky, and shows a clear decrease of expansion ages from east to west Eurasia. To investigate the demographic events at the origin of this westward decrease of expansion ages, the estimated divergence ages between Eurasian populations are compared with the estimated expansion ages within each population. Both markers suggest that the demographic expansion diffused from east to west in Eurasia in a demic way, i.e., through migrations of individuals (and not just through diffusion of new technologies), highlighting the prominent role of eastern regions within Eurasia during Palaeolithic times. Am J Phys Anthropol, 2008. © 2008 Wiley-Liss, Inc.