Haplogroup R1a1 (y-dna) Article Index for
Haplogroup
 

Information About

Haplogroup R1a1 (y-dna)




It is common in Europe , Northern Central Asia and India . In Europe the highest frequencies are in Eastern Europe . Today it is found with its highest levels in Poland and Russia, where one out of two men has this haplogroup. Relatively high frequencies are also found in Northern Europe and is believed to have been spread across Europe by the Vikings , which accounts for the existence of it in among other places the British Isles . {Link without Title}

In India data points to a correlation between the historical Brahmin caste and the R1a haplogroup, which is consistent with a northern migrations from Central Asia. Studies have however also shown a more diverse presence in Indian tribal and lower castes(the so-called Untouchables and not part of the caste system) populations, suggesting that it is not necessarily always a signature of Central Asian origin {Link without Title} .


ORIGINS

The first carriers of the R1a1 haplotype are believed to have been nomadic farmers in the steppes of northern Central Asia about 10,000 years ago. Current theories point to them being the first speakers of the proto-Indo-European languages (the Kurgan culture) and the first ones to domesticate the Horse .


RELATIONSHIP TO OTHER HAPLOGROUPS

R1a1 is a subgroup of Haplogroup R (M207).

It is related to Haplogroup R1b (M343) which is dominant in Western Europe , and more distantly related to Haplogroup R2 (M124).



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