"Abraham's Children in the Genome Era: Major Jewish Diaspora Populations Comprise Distinct Genetic Clusters with Shared Middle Eastern Ancestry." The American Journal of Human Genetics 86:6 (June 3, 2010): pages 850-859.
Abstract: "For more than a century, Jews and non-Jews alike have tried to define the relatedness of contemporary Jewish people.
Family Tree DNA: Genetic Testing Service Get genetically tested to discover your relationship to other families, other Jews, and other ethnic groups. Abstract: "The Ashkenazi Jewish (AJ) population has long been viewed as a genetic isolate, yet it is still unclear how population bottlenecks, admixture, or positive selection contribute to its genetic structure.
Projects you might qualify to join include "Gesher Galicia - Jewish DNA Project", "Jewish Gen Belarus SIG DNA Project", "Jewish Gen Hungarian SIG DNA Project", "German Jewish Gersig DNA Project", "Jewish Frankfurt", "Sephardic Heritage DNA Project", "Jews of Rhodes Project", "The Jewish R1b Project", "Ashkenazi Levite R1a1", and "Jewish E Project". Here we analyzed a large AJ cohort and found higher linkage disequilibrium (LD) and identity-by-descent relative to Europeans, as expected for an isolate.
Excerpts: "Different communities of Jews around the world share more than just religious or cultural practices -- they also have strong genetic commonalities, according to the largest genetic analysis of Jewish people to date.
But the study also found strong genetic ties to non-Jewish groups, with the closest genetic neighbours on the European side being Italians, and on the Middle Eastern side the Druze, Bedouin and Palestinians.
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. Yet the admixture with European people explains why so many European and Syrian Jews have blue eyes and blonde hair.'" Razib Khan.
"Genetics and the Jews." Discover Magazine - Gene Expression (June 6, 2010). "Two Major Groups of Living Jews." dienekes.(June 3, 2010). Jews worldwide share genetic ties: But analysis also reveals close links to Palestinians and Italians." (June 3, 2010).
The genomic analysis also provided information about selection pressures on mutations prevalent in the Ashkenazi Jewish population, such as those leading to conditions like Tay-Sachs disease or mutations in cancer susceptibility genes like BRCA1.
[...]" Gil Atzmon, Li Hao, Itsik Pe'er, Christopher Velez, Alexander Pearlman, Pier Francesco Palamara, Bernice Morrow, Eitan Friedman, Carole Oddoux, Edward Burns, Harry Ostrer.
Here, genome-wide analysis of seven Jewish groups (Iranian, Iraqi, Syrian, Italian, Turkish, Greek, and Ashkenazi) and comparison with non-Jewish groups demonstrated distinctive Jewish population clusters, each with shared Middle Eastern ancestry, proximity to contemporary Middle Eastern populations, and variable degrees of European and North African admixture.
Two major groups were identified by principal component, phylogenetic, and identity by descent (IBD) analysis: Middle Eastern Jews and European/Syrian Jews.
Order a DNA kit from FTDNA's headquarters in the USA This page collects Y-DNA and mt DNA data and analysis related to traditionally Rabbinical Jewish populations of the world, including: Ashkenazim (Jews of Northern and Eastern Europe) • Sephardim (Spanish and Portuguese Jews) • Mizrakhim (Middle Eastern Jews) • Italkim (Italian Jews) • Caucasian Mountain Jews (Dagestani and Azerbaijani Jews) • Georgian Jews • Indian Jews • North African Jews • Yemenite Jews • Ethiopian Jews Steven M. However, paradoxically we also found higher genetic diversity, a sign of an older or more admixed population but not of a long-term isolate.