MtDNA haplogroup M and subclades project
From ISOGG Wiki
The haplogroup M cluster has been characterized as generally of east Eurasia — a geographic region that includes south Asia, east Asia, and Australasia. One of the two deep roots of the mitochondrial tree of haplogroups found in Asia, haplogroup M dates to approximately 70,000 years ago. Interestingly, one of the sub-haplogroups of the M cluster, haplogroup M1, is found primarily in northern Africa, suggesting either a very early divergence from the root of haplogroup M or even migration back to Africa after the original dispersal into Eurasia. Future work will further document the historical distribution of this root haplogroup and closely related haplogroups within the M cluster.