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Post by Babylon Enigma on Apr 8, 2012 21:51:36 GMT -5
Origins and genetic legacy of Neolithic farmers and hunter-gatherers in Northern EuropeMattias Jakobsson Department of Evolutionary Biology, Evolutionary Biology Centre (EBC), Uppsala University, SwedenThe prehistoric spread of farming in Europe has garnered intense interest for almost a century, and was one of the first questions to which population genetic data was used to investigate demographic hypotheses. However, the impact of the agricultural revolution on the European gene pool remains largely unknown. We obtained 249 million base pairs of quality-filtered human autosomal sequence data from some 5,000 year-old remains of three Neolithic hunter-gatherers and one Neolithic farmer excavated in Scandinavia, the northernmost fringe of agricultural practice at the time. Applying novel methods to study population structure based on low genome-coverage data, we find that Northern European Neolithic farmers are most similar to modern-day southern Europeans, contrasting sharply to Neolithic hunter-gatherers who are most similar to extant individuals from northern Europe. With most extant European populations appearing genetically intermediate between the two Neolithic groups, our results suggest that migration from the south by a genetically distinct group of humans accompanied the spread of agriculture to geographic regions where hunting and gathering was the mode of subsistence, but that admixture eventually shaped modern-day patterns of genomic variation. kva.se/EventDoc.aspx?eventId=362&docId=534
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Post by Babylon Enigma on Apr 8, 2012 21:54:45 GMT -5
This sample is small, but it is from the same location in the same period and it reveals that the hunter-gatherers (Cro-Magnon survivors) were genetically distinct from the Neolithic farmers that colonised all the way north into modern Sweden. Todays European populations are intermediate mixture of these two once different populations, with northern Europeans(Germanics) being most similar to Cro-Magnon, and souther Europeans being most similar to Neolithic farmers.
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Kralj Vatra
Amicus
Warning: Sometimes uses foul language & insults!!!
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Post by Kralj Vatra on Apr 16, 2012 0:31:46 GMT -5
^^^ what a lousy way of abusing EU funds.
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