Figure 1
Sampling map (a) and phylogeographic relationships (b) inferred from the SNP data set inclusive of a minimum of 30% of individuals for each locus (i.e., 30% coverage data matrix). Sampling letters match descriptions in Table 1. All asterisks at nodes in (b) indicate support >0.95 in SNAPP phylogenetic analyses for all SNP data sets. The asterisk with an arrow indicates a node supported strongly only by the 30% SNP data set (other data sets posterior probability=0.85). All STRUCTURE results identified hierarchical genetic structure for each data set, separating northern and southern populations with 100% assignment to either cluster. Secondary-level STRUCTURE results are shown below phylogeny (north k=2, south k=2 or 3), with each bar representing an individual.
