Historical Jewish migrations out of the Middle East about 2,000 years ago can also be traced in the DNA of people living in Africa and Southwest Asia today.
These distinctive genetic signatures bolster historical accounts that there were waves of Jewish migration out of the Middle East into neighboring regions. Human geneticist Harry Ostrer of Albert Einstein College of Medicine in New York City and colleagues report their analysis of 509 people from 15 Jewish populations online August 6 in the Proceedings of the National Academy of Sciences, focusing their attention on communities in North Africa, Ethiopia, Yemen and the Caucasus.
Geneticists have previously traced movements of Jewish groups in Europe and the Middle East (SN: 7/3/10, p. 13; SN: 1/3/09, p. 12), but few studies have focused on Diaspora groups in other regions.
Jews settled in Tunisia more than 2,000 years ago, and genetic signatures carried from the Middle East are still evident in Tunisian Jews today, the researchers found. Together with Djerban and Libyan Jews, the Tunisian Jews form a separate genetic branch from Moroccan and Algerian Jews.