Mitochondrial DNA indicates that nearly all contemporary dogs tumble into a single of 4 monophyletic haplogroups which can be named haplogroups A, B, C, and D. The majority of dogs slide inside of haplogroup A. The mDNA "molecular clock" implies that 22,800 YBP the initial genetic divergence (break up) occurred in haplogroup A, leading to the linea… Read More