Fig. 2

Anguis fragilis, (a) maximum likelihood (ML) phylogeny, (b) geographical distributions, and (c) parsimony haplotype network of the main haplogroups in the Balkans. Numbers at nodes in the tree represent Bayesian posterior probabilities (pp) and ML bootstrap support values (pp below 0.50 and bootstrap values below 50 are not shown). Locality numbers (in parentheses) follow sample IDs and correspond to the numbers in Additional file 1: Table S1. White circles in the network represent extralimital haplotypes as detected in previous studies (Gvoždík et al. [14, 15]; Szabó & Vörös, [16]; Thanou et al. [17])