Figure 1 : Schematic Representations of the U7, U7a and U7b Phylogenies.

From: Origin and spread of human mitochondrial DNA haplogroup U7

Figure 1

Subclades are represented by triangles, while single lineages are represented by lines. Subclades and single linage lines are colored according to their geographic origin, as shown in the map (lower right corner). (A) U7 tree. (B) U7a tree. (C) U7b tree. KYA – thousand years ago. Map was generated with Surfer program (version 8, Golden Software, Inc., Golden, CO, USA,