Figure 2
From: MtDNA diversity among four Portuguese autochthonous dog breeds: a fine-scale characterisation
Median-joining network of mtDNA haplotypes observed in four Portuguese dog breeds. Circle sizes are proportional to the number of individuals they represent. White, light grey, dark grey, and black represent Castro Laboreiro Dog, Serra da Estrela Mountain Dog, Portuguese Sheepdog and Azores Cattle Dog, respectively.