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When did North Africans acquire light skin color?
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[QUOTE]Originally posted by Doug M: [QB] [QUOTE]Originally posted by Djehuti: [qb] [QUOTE]Originally posted by the lioness,: [qb] [QUOTE]Originally posted by Doug M: There have likely always been a Northern "San like" population in Northern Africa [/QUOTE]no evidence [/qb][/QUOTE]This has been a popular theory held in anthropology for a long while. But if by San-like you mean having the light complexion caused by SLC24A5 mutation, so far the earliest remains tested (epipaleolithic) in the Maghreb lack it and had dark skin. And thus far all the evidence for SLC24A5 in North Africa is associated with Eurasian population influence. As to what Yatunde pointed out about Nok Culture, early West African cultures have strong ties to the [URL=https://www.egyptsearch.com/forums/ultimatebb.cgi?ubb=print_topic;f=8;t=008330]Central Sahara[/URL]. [/qb][/QUOTE]I wasn't speaking SAN related DNA as opposed to complexion. We know all Africans don't have the same skin color and that variation is not due to Eurasian mixture. [QUOTE]Originally posted by BrandonP: [qb]That's not necessarily impossible, since skin color is a polygenic trait and we may not have identified all mutations for lighter skin. However, I don't think there's evidence for such mutations in pre-Neolithic North African aDNA either. So the prevalence of any skin-lightening alleles in North Africa prior to late Neolithic and later admixture with Europeans and West Asians will have to remain speculative for the time being. [/qb][/QUOTE]I posted this on page 1 of this thread yet people still keep posting misinformation: [QUOTE] As Colin Barras at New Scientist reports, each of these sites had genetic variants associated with paler skin and ones associated with darker skin. Seven genetic variants associated with lighter skin developed at least 270,000 years ago and four more than 900,000 years ago. Considering our species, Homo sapiens, did not evolve until around 200,00 to 300,000 years ago, the discovery suggests that the genes responsible for lighter skin tones were present into the genetic material of our hominin ancestors—hundreds of thousands of years before the first humans walked the Earth. The study suggests that genes of light and dark skin are more fluid than we once thought. Three of the genes associated with the darkest skin are likely to have evolved from genes for lighter skin tones, Barras reports, meaning that people with the darkest skin tones, like herdsmen who live in the Sahara, may have developed that deep pigmentation in the evolutionarily recent past.[/QUOTE] https://www.smithsonianmag.com/smart-news/genetic-study-shows-skin-color-just-skin-deep-180965261/ http://www.egyptsearch.com/forums/ultimatebb.cgi?ubb=get_topic;f=8;t=010745;p=1#000022 [/QB][/QUOTE]
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