01-20-2010, 02:28 AM
R1b, west european Y haplogroup has been dated to 10k years ago and originated in Iran / Turkey border
R1A entered Europe 10k years ago along north shore of caspian sea, following retreating glaciers
whereas R1B followed the south shore of caspian sea
A Predominantly Neolithic Origin for European Paternal Lineages:
The relative contributions to modern European populations of Paleolithic hunter-gatherers and Neolithic farmers from the Near East have been intensely debated. Haplogroup R1b1b2 (R-M269) is the commonest European Y-chromosomal lineage, increasing in frequency from east to west, and carried by 110 million European men. Previous studies suggested a Paleolithic origin, but here we show that the geographical distribution of its microsatellite diversity is best explained by spread from a single source in the Near East via Anatolia during the Neolithic. Taken with evidence on the origins of other haplogroups, this indicates that most European Y chromosomes originate in the Neolithic expansion.
R1A entered Europe 10k years ago along north shore of caspian sea, following retreating glaciers
whereas R1B followed the south shore of caspian sea
A Predominantly Neolithic Origin for European Paternal Lineages:
The relative contributions to modern European populations of Paleolithic hunter-gatherers and Neolithic farmers from the Near East have been intensely debated. Haplogroup R1b1b2 (R-M269) is the commonest European Y-chromosomal lineage, increasing in frequency from east to west, and carried by 110 million European men. Previous studies suggested a Paleolithic origin, but here we show that the geographical distribution of its microsatellite diversity is best explained by spread from a single source in the Near East via Anatolia during the Neolithic. Taken with evidence on the origins of other haplogroups, this indicates that most European Y chromosomes originate in the Neolithic expansion.