Estimates of evolutionary divergence between mitochondrial DNA control region sequences from taxa of the B. boreas species complex within the Great Basin. The number of base substitutions per site from between sequences is shown. Analyses were conducted using Jukes-Cantor model (Jukes and Cantor, 1969), which involved 14 nucleotide sequences (Fig. 1B), in Mega7 (Kumar et al., 2016). All positions containing gaps and missing data were eliminated, which resulted in a final dataset of 1429 positions. Pairwise comparisons against congeners of the B. boreas species complex for B. nevadensis and B. monfontanus are indicated in bold.