Fig. 3.

Phylogenetic relationship between the sdrD variants. Phylogenetic tree based on the deduced amino acid sequences for the entire sdrD gene from seven representative S. aureus strains. The tree was generated by the maximum likelihood method using RaxML [27]. The bootstrap support values (1000 replicates) are indicated on the branches. Branch length is proportional to the number of substitutions as indicated by the scale bar