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mtDNA: ‘Caucasian Eve’ Had Only Six Daughters March 1, 2009

Posted by ethnicgenome in Caucasians.
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Over 90% of all Caucasoids – people native to Europe, North Africa and the Middle East – are descendants of the same 6 women who lived 20,000 to 30,000 years ago.

Their mtDNA (maternal line) haplogroups are H, J, K, T, V and U. All of them came from haplogroup R, which originated somewhere between the Black Sea and the Caspian Sea. That region is known as Caucasus, which is why white people are referred to as Caucasians.

East Asian haplogroups B and F, as well as the Pacific haplogroup P also derived from R, but due to the vast geographic separation from the above 6 haplogroups, they became vastly different.

There’re also some white people belonging to haplogroup X (and a small number of I and W), which is why Bryan Sykes referred to Caucasoid mtDNA as having descended from the 7 daughters of Eve.

But as I explained, I don’t believe it to be accurate because X is a near-universal haplogroup that is found in small numbers throughout much of the world, including among Amerindians, Pakistanis and others. It is therefore more an international haplogroup than a Caucasian one.

X originated in Iran or Turkmenistan, and not in the Caucasus. It is part of the haplogroup IWX and is related to haplotype R only because both IWX and R descended from haplotype N 30,000 to 55,000 years ago.

There are similarly 9 women who are the ancestors of all Japanese people, and 4 women (haplogroups A2, B2, C1 and D1) are the ancestors of nearly all American Indians (and most of the remaining are descendants of haplogroup X).

This how mtDNA developed since the first humans left Africa. (You have to adjust your eyes because this map has Africa on top.)

mtdna haplogroups

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