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Mummy Genetics Study May Be Prelude To Widespread Genome Mapping Of Ancient Egyptians
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[QUOTE]Originally posted by The Explorer: [QB] [QUOTE]Originally posted by Swenet: according to various researchers, the very recent G 13915 allele, perhaps associated with the Saudi Camel domestication event, made its way into Ethiopia at a time that could not have been much older that ~4kya. Enattah et al: [QUOTE][b]Our age estimate of the G 13915 allele of ~4095[/b] (+/- 2045) years in the Arabian Peninsula would suggest that the introduction of this LP variant might be associated with the domestication of the Arabian camel more than 6000 years ago.[/QUOTE]--Enattah et al, 2008 Where this allele is found according to Ingram et al 2006: [QUOTE]Of the populations tested, [b]the -13915*G allele was found to be fairly widespread in eastern Africa[/b] and the Middle East. It was most common in the Saudi Bedouins[/QUOTE]--Ingram et al 2006 I'd love to see the nutties pull the ''this is not due to Eurasian backflow, but due to OOA events'', or ''its not Eurasian because (insert African ethnic group) have it too!'' mumbo jumbo on this one.[/QUOTE]You are on the verge of making the same mistake that you made with the SLC24A5 marker. You simply parrot whatever tickles your emotion, without thinking. Here's a little known trivia about lactose tolerance in east Africa: [i]After testing for lactose tolerance and genetic makeup among 43 ethnic groups in East Africa, she and her colleagues have [b]found three new[/b] mutations [b]all independent of one another[/b] and [b]of the European mutation[/b], that [b]keep the lactase gene permanently switched on[/b].[/i] - Tishkoff et al., courtesy of NY Times. Few things to note about the above: Unique mutations were found in east Africa. Not only are these mutations different from say, those in Europeans, but they tend to be independent variants between east African groups themselves. Lactose tolerance-associated alleles are the product of positive selection on the LCT gene. Therefore, it is not inconceivable for the gene to either actually originate in Africa, and/or, for it to emerge on the backdrop of convergent evolution. You have to demonstrate to me how lactose tolerance in east Africans is the product of non-African gene flow! [/QB][/QUOTE]
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