Origin of the Tribes of Israelites ?

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Advanced genetic testing, including Y-DNA and mtDNA haplotyping, of
modern Jewish communities around the world, has helped to determine
which of the communities are likely to descend from the Israelites and
which are not, as well as to establish the degrees of separation
between the groups. Important studies archived here include the
University College London study of 2002, Ariella Oppenheim's study of
2001, Ariella Oppenheim's study of 2000, Michael Hammer's study of
2000, Doron Behar's study of 2008, and others.
Key findings:
send by Paul Salomon, Germany
The main ethnic element of Ashkenazim (German and Eastern European
Jews), Sephardim (Spanish and Portuguese Jews), Mizrakhim (Middle
Eastern Jews), Juhurim (Mountain Jews of the Caucasus), Italqim
(Italian Jews), and most other modern Jewish populations of the world
is Israelite. The Israelite haplotypes fall into Y-DNA haplogroups J
and E.
Ashkenazim also descend, in a smaller way, from European peoples from
the northern Mediterranean region and even less from Slavs and
Khazars. The non-Israelite Y-DNA haplogroups include Q (typically
Central Asian) and R1a1 (typically Eastern European).
Dutch Jews from the Netherlands also descend from northwestern
Europeans.
Sephardim also descend, in a smaller way, from various non-Israelite
peoples.
Georgian Jews (Gruzinim) are a mix of Georgians and Israelites.
Yemenite Jews (Temanim) are a mix of Yemenite Arabs and Israelites.
Moroccan Jews, Algerian Jews, and Tunisian Jews are mainly Israelites.
Libyan Jews are mainly Israelites who may have mixed somewhat with
Berbers.
Ethiopian Jews are almost exclusively Ethiopian, with little or no
Israelite ancestry.
Bene Israel Jews and Cochin Jews of India have much Indian ancestry in
their mtDNA.
Palestinian Arabs are probably partly Israelite.
http://www.khazaria.com/genetics/abstracts.html

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