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Most European Males Descendants of Farmers, Who Migrated from the Near East 10,000 Yrs Ago
The invention of farming is perhaps the most important cultural change in the history of modern humans.
Increased food production led to the development of societies that stayed put, rather than wandering in search of food.
The resulting population growth culminated in the seven billion people who now live on the planet. In Europe, farming spread from the 'Fertile Crescent', a region extending from the eastern Mediterranean coast to the Persian Gulf and including the Tigris and Euphrates valleys.
There has been much debate about whether the westerly spread of agriculture from the Near East was driven by farmers actually migrating, or by the transfer of ideas and technologies to indigenous hunter-gatherers.
Now, researchers have studied the genetic diversity of modern populations to throw light on the processes involved in these ancient events.
The new study, funded by the Wellcome Trust, examines the diversity of the Y chromosome, which is passed from father to son.
According to Mark Jobling, who led the research, "We focused on the commonest Y-chromosome lineage in Europe, carried by about 110 million men - it follows a gradient from south-east to north-west, reaching almost 100 percent frequency in Ireland."
"We looked at how the lineage is distributed, how diverse it is in different parts of Europe, and how old it is," he said.
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