Where Do Haplogroup W's Come From?
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Where Do Haplogroup W's Come From?

Percentage of W Haplogroup in Eurasia. Shading indicates the percent of the population with the W haplogroup.

Haplogroup W, on a local scale, peaks at nearly 9% of the population in northwest Pakistan. Other peaks are over 5% in northwest Iran and over 11% in central-north Finland. The first two peaks are believed related to the ancient ice age refuges of the W and other N-descended haplogroups in south Asia. The Finnish peak may be due to the founder or survivor effect of a small population that included a W woman that colonized the most northern part of Europe after the ice receded. Elsewhere, from western Europe to central Asia, W haplogroup varies from under 1% to 3% of the population. It is essentially absent from Africa, east Asia, and native Americans.  

 

 

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