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DNA from 4,500-year-old Ethiopian reveals surprise about ancestry of Africans
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[QUOTE]Originally posted by Troll Patrol # Ish Gebor: [QB] [IMG]http://news.sciencemag.org/sites/default/files/sn-africamap.png[/IMG] [QUOTE]Although researchers have managed to sequence the genomes of Neandertals from Europe, prehistoric herders from Asia, and Paleoindians from the Americas, Africa’s hot and humid climate has left little ancient DNA intact for scientists to extract. As a result, “Africa was left out of the party,” says anthropological geneticist Jason Hodgson of Imperial College London. Until now. A paper published online this week in Science (http://scim.ag/MGLlorente) reveals the first prehistoric genome from Africa: that of Mota, a hunter-gatherer man who lived 4500 years ago in the highlands of Ethiopia. Named for the cave that held the remains, the Mota genome “is an impressive feat,” says Hodgson, who was not involved in the work. It “gives our first glimpse into what an African genome looked like prior to many of the recent population movements.” And when compared with the genomes of living Africans, it implies something startling. Africa is usually seen as a source of outward migrations, but the genomes suggest a major migration into Africa by farmers from the Middle East, possibly about 3500 years ago. These farmers’ DNA reached deep into the continent, spreading even to groups considered isolated, such as the Khoisan of South Africa and the pygmies of the Congo. When population geneticist Andrea Manica and graduate student Marcos Gallego Llorente at the University of Cambridge in the United Kingdom analyzed the sequence, [b]they found that the Mota man had brown eyes and dark skin, as well as three gene variants associated with adaptation to high altitudes; some peaks in the highlands reach 4500 meters, as high as the Matterhorn.[/b] Inviduals from 40 populations in Africa and 81 populations from Europe and Asia,[b] the team found that Mota was most closely related to the Ari, an ethnic group that still lives nearby in the Ethiopian highlands[/b]. They zeroed in on the DNA that the Ari carry but Mota doesn’t, which was presumably added during the past 4500 years. [b]They found that Mota lacks about 4% to 7% of the DNA found in the Ari and all other Africans examined. This new DNA most closely matches that of modern Sardinians and a prehistoric farmer who lived in Germany.[/b] [/QUOTE]--Ann Gibbons Prehistoric Eurasians streamed into Africa, genome shows First genome of an ancient African suggests widespread mixing with farmers from the Middle East http://news.sciencemag.org/evolution/2015/10/first-dna-extracted-ancient-african-skeleton-shows-widespread-mixing-eurasians It's inserting to know that the Natufians were the early farmers of the Levant, also referred to as he Eastern Mediterranean. Ancient Levantine people: [IMG]http://realhistoryww.com/world_history/ancient/Misc/Common/Egypt/Ceramic_tiles/Philistine.jpg[/IMG] [IMG]http://www.realhistoryww.com/world_history/ancient/Misc/Common/Egypt/tile6.jpg[/IMG] [IMG]http://realhistoryww.com/world_history/ancient/Misc/Common/Egypt/tile1.jpg[/IMG] Ari people: [IMG]http://news.sciencemag.org/sites/default/files/styles/thumb_article_l/public/sn-africa.jpg?itok=HAxKBGzE[/IMG] [IMG]http://i1.trekearth.com/photos/13658/ari_beauty1.jpg[/IMG] [/QB][/QUOTE]
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