dog - An Overview
Mitochondrial DNA suggests that just about all modern-day dogs tumble into a single of four monophyletic haplogroups that are named haplogroups A, B, C, and D. Nearly all of dogs slide inside haplogroup A. The mDNA "molecular clock" implies that 22,800 YBP the first genetic divergence (break up) happened in haplogroup A, leading to the lineages A1b