Haplogroup_L7_(mtDNA)
Haplogroup L4
African mitochondrial DNA grouping indicating common ancestry
Haplogroup L4 is a human mitochondrial DNA (mtDNA) haplogroup. It is a somewhat uncommon maternal clade primarily found in East Africa, and West Asia.[2]
L4 is important in East Africa. The highest frequencies are in Tanzania among the Hadza at 60-83% and Sandawe at 48%.[3]
It has two branches, L4a and L4b. Subgroup L4a was formerly called L7 and considered a separate subclade of L3'4'7. It has been recognized as a subclade of L4, with L3 as its outgroup by Behar et al. (2008).[4] The parent clade L3'4 is to have emerged at 106–66 kya.[5] L4 is not much later than this, estimated at 87 kya by Fernandes et al. (2015).[6]