[Genetica] Ricostruita la storia della diaspora ebraica

[Spantegu]

dato che si parla tanto di Israele, oggi è stato pubblicato lo studio di Harry Ostrer direttore dello Human Genetics Program alla New York University School of Medicine.

"The genetic, cultural and religious traditions of contemporary Jewish people originated in the Middle East over three thousand years ago. Since that time, Jewish communities have migrated from the Middle East into Europe, North Africa and across the world. ... This study shows that although Jewish people experienced genetic mixing with surrounding populations, they retained a genetic coherence along with a religious one. 'Previous genetic studies of blood group and serum markers suggested that Jewish groups had Middle Eastern origin with greater genetic similarity between paired Jewish populations,' says senior study author, Dr. Harry Ostrer... 'More recent studies of Y chromosomal and mitochondrial DNA have pointed to founder effects of both Middle Eastern and local origin, yet, the issue of how to characterize Jewish people as mere coreligionists or as genetic isolates that may be closely or loosely related remained unresolved. ... Yet the genomes of the Jewish Diaspora groups have distinctive features that are representative of each group's genetic history.' says Dr. Ostrer. 'Our study demonstrated that the studied Jewish populations represent a series of geographical isolates or clusters with genetic threads that weave them together,' added Dr. Gil Atzmon... The researchers identified distinct Jewish population clusters that each exhibited a shared Middle Eastern ancestry, proximity to contemporary Middle Eastern populations and variable degrees of European and North African genetic intermingling. ... The two major groups, Middle Eastern Jews and European Jews, were timed to have diverged from each other approximately 2500 years ago. Southern European populations show the greatest proximity to Ashkenazi, Sephardic and Italian Jews, reflecting the large-scale southern European conversion and admixture known to have occurred over 2,000 years ago during the formation of the European Jewry. An apparent North African ancestry component was also observed as was present in the Sephardic groups potentially reflecting gene flow from Moorish to Jewish populations in Spain from 711 to 1492. ... Dr. Ostrer noted, 'The study supports the idea of a Jewish people linked by a shared genetic history. Yet the admixture with European people explains why so many European and Syrian Jews have blue eyes and blonde hair.'"

http://www.sciencedaily.com/releases...0603123707.htm

la divisione in 2 grandi gruppi è coincidente con il regno di Nabucodonosor II e la deportazione in Babilonia.
quindi la scienza conferma la storia.

links: http://www.khazaria.com/genetics/abstracts-jews.html