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Caucasus hunter-gatherer (CHG), also called Satsurblia cluster, [1] [2] is an anatomically modern human genetic lineage, first identified in a 2015 study, [3] [1] based on the population genetics of several modern Western Eurasian (European, Caucasian and Near Eastern) populations.
Oldest J-M267 was a Caucasus Hunter-Gatherer from Satsurblia cave, Georgia. [5] Men from this lineage share a common paternal ancestor, which is demonstrated and defined by the presence of the single nucleotide polymorphism (SNP) mutation referred to as M267, which was announced in (Cinnioğlu 2004).
The Caucasus region, on the gateway between Southwest Asia, Europe and Central Asia, plays a pivotal role in the peopling of Eurasia, possibly as early as during the Homo erectus expansion to Eurasia, in the Upper Paleolithic peopling of Europe, and again in the re-peopling Mesolithic Europe following the Last Glacial Maximum, and in the expansion associated with the Neolithic Revolution.
Later, ANE populations migrated westward into Europe and admixed with European Western hunter-gatherer (WHG)-related groups to form the Eastern Hunter-Gatherer (EHG) group, which later admixed with Caucasus hunter-gatherers to form the Western Steppe Herder group, which became widely dispersed across Eurasia during the Bronze Age. [20]
Spread of farming from Southwest Asia to Europe and Northwest Africa, between 9600 and 4000 BC. Populations of the Anatolian Neolithic derived most of their ancestry from the Anatolian hunter-gatherers (AHG), with a minor geneflow from Iranian/Caucasus and Levantine related sources, suggesting that agriculture was adopted in situ by these hunter-gatherers and not spread by demic diffusion into ...
Together, they form a genetically distinct cluster referred to as Caucasus Hunter-Gatherer (CHG). [8] [9] In comparison to modern human populations, the Satsurblia individual is closest to the modern population in Georgia. [8] The Caucasus hunter-gatherers contributed significantly to modern European populations by way of the Yamnaya people. [12]
The West Eurasian ancestry, which is closely related to Mesolithic hunter-gatherers and Neolithic farmers who lived on the Iranian Plateau (who are also closely related to Caucasus hunter-gatherers), forms the major source of the South Asian genetic makeup, and combined with varying degrees of AASI ancestry, formed the Indus Periphery Cline ...
Western Steppe Herders are considered to be descended from a merger between Eastern Hunter-Gatherers (EHGs) and Caucasus Hunter-Gatherers (CHGs). The WSH component is modeled as an admixture of EHG and CHG ancestral components in roughly equal proportions, with the majority of the Y-DNA haplogroup contribution from EHG males.