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| All Non-Africans Descended From Sin |
| All Non-Africans Descended From Single Migration Out Of Africa
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| UNITED STATES OF AMERICA
, 22-September-2016
11:33:20 AM |
| Studying hundreds of new genomes from across the globe, researchers, one of them of Indian-origin, have found compelling evidence that essentially all non-Africans alive today descend from a single migration out of Africa some 72,000 years ago.
The findings are supported by three new genome sequencing studies published in the journal Nature.
One of the studies led by Harvard Medical School (HMS) geneticists sequenced samples from 142 smaller populations, most of which were previously understudied.
"We wanted to go out into the world and pull together as many of the ethnically, linguistically and anthropologically diverse samples as we possibly could," said first author of the study Swapan Mallick from Harvard Medical School.
The Harvard geneticists and their international team of colleagues began by selecting two genomes each from 51 populations represented in a collection called the Human Genome Diversity Project.
Next, they assembled samples from members of 91 other groups, including diverse Native American, South Asian, and African populations not previously included in genome-wide studies, and sent the DNA for sequencing. In all, the project analysed the genomes of 300 people.
A key conclusion - that the vast majority of modern human ancestry in non-Africans derives from a single population that migrated out of Africa - is also supported by two other whole-genome sequencing studies appearing simultaneously in Nature.
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