Haplogroup E (Y-DNA)

Haplogroup E
Possible time of origin	50,000 - 55,000 years BP 50,000-55,000 split between D and E
Possible place of origin	East Africa, or possibly Asia
Ancestor	DE
Descendants	E-P147, E-M75
Defining mutations	L339, L614, M40/SRY4064/SRY8299, M96, P29, P150, P152, P154, P155, P156, P162, P168, P169, P170, P171, P172, P173, P174, P175, P176

Haplogroup E-M96 is a human Y-chromosome DNA haplogroup. It is one of the two main branches of the older haplogroup DE, the other main branch being haplogroup D. The E-M96 clade is divided into two main subclades: the more common E-P147 and the less common E-M75.

Underhill (2001) proposed that haplogroup E may have arisen in East Africa. Some authors as Chandrasekar (2007), continue to accept the earlier position of Hammer (1997) that Haplogroup E may have originated in Asia, given that:

However, several discoveries made since the Hammer articles are thought to make an Asian origin less likely:

Nonetheless, in 2015 Poznik and Underhill have claimed haplogroup E, arose outside Africa. This model of geographical segregation within the CT clade requires just one continental haplogroup exchange (E to Africa), rather than three (D, C, and F out of Africa). The timing of this putative return to Africa, between the emergence of haplogroup E and its differentiation within Africa by 58 kya, is consistent with proposals, based on non–Y chromosome data, of abundant gene flow between Africa and Arabia 50–80 kya.

Most members of haplogroup E-M96 belong to one of its identified subclades, and the E-M96(xE-P147, E-M75) is rare. E1a and E-M75 are found almost exclusively in Africa. By looking at the major subclade frequencies, five broad regions of Africa can be defined: East, Central, North, Southern and West. The division can be distinguished by the prevalence of E-V38 in East, Central, Southern and West Africa, E-M78 in East Africa and E-M81 in North Africa. E-V38 is the most prevalent subclade of E in Africa. It is observed at high frequencies in all African regions except the northernmost and easternmost portions of the continent. E-M243 (especially its subclades M78 and M81) is found at high frequencies in North East Africa and North Africa and is the only subclade that is found in Europe and Asia at significant frequencies. E-M243 is common among Afro-Asiatic speakers in the Near East and North Africa as well as among some Nilo-Saharan and Niger–Congo speakers in North East Africa and Sudan. E-M243 is far less common in West, Central, and Southern Africa, though it has been observed among some Khoisan speakers and among Niger–Congo speakers in Senegambia,Guinea-Bissau,Burkina Faso,Ghana, Gabon, the Democratic Republic of the Congo, Rwanda,Namibia, and South Africa.

...
Wikipedia