Figure 6.

Phylogenetic history of the β‐ketoadipate operon. (a) Part of the ∼109‐kb contig from the assembly of aesc2336 containing the β‐ketoadipate gene cluster (green). Genes in yellow have a phylogenetic history that is congruent with that of the core genome phylogeny; genes in orange show phylogenetic discordance. Grey indicates genes for which phylogenies were not estimated. (b) Selected gene phylogenies. Strains from the three phylogroups are shown in purple, black and pink for PG1, PG2 and PG3, respectively. All phylogenies are rooted with the outgroup strain Pcan4326 (not shown), except for trees (v) and (vi) which were midpoint rooted. Branch thicknesses are drawn relative to the bootstrap support (thicker indicates higher support; no minimum bootstrap threshold). All scale bars represent 0.02 nucleotide substitutions per site.