The genome-wide genetic study carried out in 2010 by Behar et al. examined the genetic relationships among <answer>all major Jewish groups</answer>, including Ashkenazim, as well as the genetic relationship between these Jewish groups and non-Jewish ethnic populations. The study found that contemporary Jews (excluding Indian and Ethiopian Jews) have a close genetic relationship with people from the Levant. The authors explained that "the most parsimonious explanation for these observations is a common genetic origin, which is consistent with an historical formulation of the Jewish people as descending from ancient Hebrew and Israelite residents of the Levant".
The genome-wide genetic study carried out in 2010 by Behar et al. examined the genetic relationships among which Jewish groups?
all major Jewish groups