Figure S3 from Dogs accompanied humans during the Neolithic expansion into Europe

Chronological and geographical representation of ancient dog haplogroup frequencies in five geographic regions. Dotted line corresponds to the Neolithic transition in each region. Squares correspond to the different haplogroups. The 99 ancient dog sequences considered were grouped according to Table S2 Red: Haplogroup A, Blue: Haplogroup B, Yellow: Haplogroup C, Green: Haplogroup D.