An excavation of a southern French burial site from about 3,000 B.C. shows that the modern humans who expanded into the area from the Mediterranean lived in patrilocal communities and did not have the genetic mutation that allowed later Europeans to digest fresh milk.
Scientists analyzed DNA extracted from the bones of 53 people buried in Cave I of the Treilles, located in the Grands Causses region at Saint-Jean-et-Saint-Paul, Aveyron in France. They were able to get useful information from 29 of those samples, 22 men, two women ad five for whom it was impossible to determine sex. Most of them appeared to be closely related, with two of them having a 99.9979% probability of being father and son and two others having a 99.9985% probability of being siblings.
The researchers were able to deduce from their findings that the peoples in this region of France were of a genetic type more closely related to Basque and Spanish populations than current western European populations. They were also more closely related to peoples in Cyprus, Portugal, Turkey, Italy and Lebanon.
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