Figure 5.

Phylogeny of the Bacillus licheniformis subclade of the B. subtilis–B. licheniformis clade based on the neighbour-joining analysis of sequence diversity at rpoB. The putative ecotypes demarcated by community phylogeny are listed as the ‘Groups’ in the figure. The ecotypes were demarcated as the largest clades that were each consistent with being a single ecotype (i.e. such that 95% CI included n=1 ecotype). The phylogeny is rooted by B. halodurans. Microhabitat sources were the south-facing slope (open circles), the north-facing slope (filled circles) and the canyon bottom (V-shaped) within ‘Evolution Canyon’; asterisks indicate reference strains isolated outside of ‘Evolution Canyon’. The phylogeny of the B. subtilis subclade, which was included in the community phylogeny analysis, is not shown here.