Fig. 4

Phylogenetic tree based on whole genome alignment of the 30 sequenced strains with 48 M. pneumoniae genomes accessed from NCBI. The tree was built through 500 bootstraps using the maximum composite likelihood approach based on neighbor-joining algorithms. Branch length designates actual distance. Bootstrapping values over 50 are represented on the tree. Blue colored strains are from this study and red colored strains are the 6 references. Strains are grouped into four distinct clades. ST, sequence type