18-September-2007, 10:53 PM
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Order of Kilopi
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Join Date: Apr 2004
Posts: 7,053
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It was probably this press release you were thinking of.
Better summary here.
Quote:
Team members say the genetic variation they discovered accounts for about one-third of the difference in melanin, or pigment, between the skin of black and white people. [...]
Almost all of the Chinese, Japanese and Africans did not have it. [...]
They also used reflectometers to measure skin color in 400 people of African descent, and found that relative darkness was correlated to whether they had the variation. When one parent had the variation and the other did not, the effect on offspring lay in between.
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Oops, it seems the connection to agriculture was just my memory filling in too many gaps...
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"All your bias are belong to us" Ara Pacis.
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