Phylogenetic tree inferred from the MARE-filtered supermatrix under the maximum likelihood (ML) criterion and rooted with E. hermannii NBRC 105704. Branch lengths within the outgroup were shortened to improve visualization. The branches are scaled in terms of the expected number of substitutions per site. Numbers above / below the branches (from left to right) are bootstrapping support values (if larger than 60%) from (i) ML MARE-filtered supermatrix; (ii) maximum-parsimony (MP) MARE-filtered supermatrix; (iii) ML “full” supermatrix, (iv) MP “full” supermatrix, (v) ML core-genes; (vi) MP core-genes analysis. Dots indicate branches with maximum support under all settings. Numbers in square brackets refer to further strain information as listed in the caption of Figure 6.