What follows is my version of the mtDNA tree found at PhyloTree. The main characteristic is that each 10 horizontal pixels in the full size image represent one (known) SNP.
Click to enlarge
Anotations in magenta at the
What follows is my version of the mtDNA tree found at PhyloTree. The main characteristic is that each 10 horizontal pixels in the full size image represent one (known) SNP.
Click to enlarge
Anotations in magenta at the right are merely informative of the main location of the various lineages. I used only 7 distinct geographical regions for this purpose: Africa, West Eurasia (extending sometimes to North Africa and Central Asia), South Asia (extending in one case to Central Asia), East Asia (extending sometimes through North Eurasia, Central Asia and America), Andaman Islands, Australia and Melanesia. Some lineages I really don't know right now where they have been found and have been left without anotations.
Preliminary findings: the rythm of expansion.
Very simplified, I find the following apparent pulses:
1. A very old one when L0, L1 and L2'3'4'5'6 begin their expansion.
2. A "rapid" sequence of expansion of L3:
2.1. Expansion of L3 and L2.
2.2. Expansion of three L3 subclades: L3b'c'd'j, L3e'ik'x and L3h.
2.3. Expansion of M, N and many M sublineages of "very short stem" (1 SNP)
2.4. Expansion of R and many M