Genetic studies on Jews related they were through IBD. Individuals within the Ashkenazi, Sephardi, and Mizrahi groups shared high levels of IDB, roughly equivalent to that of fourth or fifth cousins. All three groups shared many genetic features, suggesting a common origin dating back more than 2,000 years. The study did find that all three Jewish groups did show various signs of admixture with non Jews, with the genetic profiles of Ashkenazi Jews indicating between 30% and 60% admixture with Europeans, although they clustered more closely with Sephardi and Mizrahi Jews. In July 2010, Bray et al., using SNP microarray techniques and linkage analysis,
Ashkenazi Jews in Israel class, and the disparity between Ashkenazim and Mizrahim diminished (but did not completely disappear), with Mizrahi political expression becoming increasingly linked to the Likud and Shas parties; Shas was founded as a party to represent Mizrahim while Likud, the largest right-wing party, in Israel became increasingly influenced by Mizrahi political articulation, with the Mizrahi middle class' political coming-of-age held by political science commentators to be embodied by the rise of Mizrahi Likud politicians such as Moshe Kahlon and Miri Regev. The Ashkenazi vote has, aside from electorally limited majority-Ashkenazi ultra-religious parties such as Habayit Hayehudi, long been associated with secularism