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Haplogroup E (Y-DNA)
In human genetics, Haplogroup E (M96) is a human Y-chromosome DNA haplogroup.
This haplogroup is found in Africa, the Middle East, and Europe. Haplogroup E is found in Africa, Asia and Europe and it is divided into three clades: E1 and E2 are found exclusively in Africa, while E3 is observed in Africa, Europe and western Asia. E3 is further divided into E3a and E3b, but only E3b is observed in significant frequency in Europe and western Asia in addition to Africa. E3b is estimated to be 25 600 years old.  Most Sub-Saharan Africans belong to E(xE3b), while most non-Africans belong to the E3b clade of the E haplogroup.”
Additional recommended knowledge
E1 (M33) headed for West Africa and today it is mainly present in the region of Mali.
E2 (M75) is present both in West and East Africa.
E3, by far the most frequent subbranch of E, diverged into two main subbranches E3a (M2) and E3b (M35) approximately 24-27 000 years ago (Cruciani et al. 2004). The bearers of E3a populated the coastal region of West Africa, where they largely mixed with indigenous Pygmy populations and gave birth to modern West Africans speaking languages of the Niger-Congo family. As a result of the historical migrations of the agricultural Bantu-speaking cultures that started ca. 3000 BC, E3a is the most frequent Y-haplogroup in Sub-Saharan Africa today. It is also the most common Y-haplogroup among African American men.
Within eastern Africa, the haplogroup appears to be restricted to Ethiopia but E-M34 chromosomes have been found in a large majority of the populations from the Near East. E-M34 chromosomes from Ethiopia show lower variances than those from the Near East and appear closely related in the E-M34 network. Thus, it is assumed that E-M34 chromosomes were introduced into Ethiopia from the Near East.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Haplogroup_E_(Y-DNA)". A list of authors is available in Wikipedia.|