Jews Share Genetic Roots

By Elissa Strauss June 4, 2010

A new genetic study, the largest of its kind, has found a genetic link between seven distinct groups of Jews, confirming a communal origin in the Middle East. The study, which was led by Harry Ostrer, a geneticist at New York University School of Medicine, and published yesterday in The American Journal of Human Genetics, proved that while Iranian, Iraqi, Syrian, Italian, Turkish, Greek and Ashkenazi Jews all have their own genetic signature, they show some overlap.

Researchers discovered that 2,500 years ago Iranian and Iraqi Jews separated from European and Syrian Jews and formed distinct groups, but with a common origin. They also learned that any two Ashkenazi Jews are likely to share as much DNA as fourth or fifth cousins.

The findings of the study will help researchers to better understand disease genes present in ethnic groups, including the breast cancer gene common in Ashkenazi Jews.

To read an editorial on the subject, click here.

Elissa Strauss has written for the Forward over a number of years. She is a regular contributor to CNN, whose work has been published in a number of publications including The New York Times, Glamour, ELLE, and Longreads.

A message from our CEO & publisher Rachel Fishman Feddersen

I hope you appreciated this article. Before you go, I’d like to ask you to please support the Forward’s award-winning, nonprofit journalism during this critical time.

The coming year promises to be filled with more complex and historic developments. We are entering an era where independent, fact-based Jewish journalism will be more important than ever. We need to be ready for whatever 2025 will bring, and with your help, we can be.

We’ve set a goal to raise $260,000 by December 31. That’s an ambitious goal, but one that will give us the resources we need to invest in the high quality news, opinion, analysis and cultural coverage that isn’t available anywhere else.

If you feel inspired to make an impact, now is the time to give something back. Join us as a member at your most generous level.

— Rachel Fishman Feddersen, Publisher and CEO