Register for an account

X

Enter your name and email address below.

Your email address is used to log in and will not be shared or sold. Read our privacy policy.

X

Website access code

Enter your access code into the form field below.

If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. Your website access code is located in the upper right corner of the Table of Contents page of your digital edition.

Health

Out of the agricultural hearths

Gene ExpressionBy Razib KhanDecember 13, 2011 1:34 AM

Newsletter

Sign up for our email newsletter for the latest science news

Dienekes has an important post up, The womb of nations: how West Eurasians came to be. He outlines a scenario where a rapid expansion of a farming population has overlain much of Western Eurasia, atop aboriginal substrata. A few years ago you'd have laughed at such a model, mostly due to the authority of archaeologists and phylogeographers relying on mtDNA lineage distributions. No longer. This is not necessarily an orthodoxy, and the details of the model vary, but here is my verbal rendering of the simplest scenario: 1) ~50 thousand years hybridization between Eurasian hominins and "Out of Africa" 2) ~40-10 thousand years before the present, crystallization of the Paleolithic order of human population structure, derived from groups seeded in the original migration 3) ~10 thousand to a few thousand years before the present, the Paleolithic order is replaced and assimilated by farmers expanding from a few hearths Below the fold is a stylized tree representation of what I have in mind.

charteurasia.jpg

2 Free Articles Left

Want it all? Get unlimited access when you subscribe.

Subscribe

Already a subscriber? Register or Log In

Want unlimited access?

Subscribe today and save 70%

Subscribe

Already a subscriber? Register or Log In