Haplogroup L4b (mtDNA)

Haplogroup L4b
Possible time of origin	40000 YBP
Possible place of origin	Arabian Peninsula
Ancestor	L4
Defining mutations	709, 3918
Highest frequencies	L4b1, L4b2

In , Haplogroup L4b is a . It is commonly found in East Africa and the Southwestern Arabian Peninsula.

This haplogroup is believed to have diverged from Haplogroup L4, during the late Pleistocene in East Africa, in the Red Sea region (Kivisild 2004).

L4b1a and L4b2b seem to be largely restricted to West Africa, with a Yemeni testing positive for the former (Behar et al 2008). L4b2a2 is the most common found subclade in click-speaking populations, but has been found as far north as Sudan, Saudi Arabia (Fernandes 2015) and Syria (Behar et al 2008). L4b2a1 is the most common L4b sub-clade in the Horn of Africa.

This phylogenetic tree of haplogroup L4 subclades is based on the paper by Mannis van Oven and Manfred Kayser.

Most Recent Common Ancestor (MRCA)

Phylogenetic tree of

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