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| | |-+  Genes Tell Tale of Jewish Ties to Africa
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Author Topic: Genes Tell Tale of Jewish Ties to Africa  (Read 3420 times)
Makini
Makini
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Posts: 434


« on: August 02, 2011, 10:58:33 PM »

Genes Tell Tale of Jewish Ties to Africa

By Gianna Palmer

In the Book of Kings, Solomon is depicted as an international businessman of sorts who sent ships from the port of Etzion-Geber, near modern day Eilat, to trade precious metals and other goods with various parts of the world, including Africa. Solomon also famously received a visit from the Queen of Sheba, who is thought to be from what is presently Ethiopia.
 
Now, a new scientific paper offers a genetic timeline that could support these biblical tales. The paper builds on two studies published last summer that were the first to use genome-wide analyses to trace the history of the Jewish people through DNA.
 
“It demonstrated that there was a biological basis for Jewishness,” said Dr. Harry Ostrer, director of the human genetics program at the New York University School of Medicine, who led one of the studies.

Among its many findings, Ostrer’s paper indicated that Jews have African ancestry — an observation that David Reich, associate professor of genetics at Harvard Medical School, and his colleagues decided to explore further.
 
Reich’s team analyzed more than half a million DNA markers across the entire genomes of people from seven diverse Jewish populations — including Ashkenazim from northern Europe; Sephardim from Italy, Turkey and Greece, and Mizrahim from Syria, Iraq and Iran. They then compared the genetic data with DNA from 15 sub-Saharan African populations.
 
Reporting in the April issue of PLoS Genetics, the researchers found that modern day Jews can attribute about 3% to 5% of their ancestry to sub-Saharan Africans, and that the exchange of genes between Jews and sub-Saharan Africans occurred approximately 72 generations, or about 2,000 years, ago.
 
Priya Moorjani, a doctoral student in Reich’s lab who led the research, was surprised that the degree of African DNA was so consistent across the various Jewish populations. She had expected, for example, that North African and Middle Eastern Jews would have a greater degree of genetic mingling than Europeans, based on their geographic proximities.
 
So the findings, Moorjani said, may point to a shared ancestry among the various Jewish groups. “It’s definitely suggestive that most Jewish populations have a common ancestral population,” she said...



Full article: http://www.forward.com/articles/140721/#ixzz1Tvl2mfbB
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