Figure 1.

Estimate of mycobacterial phylogeny based on a multilocus seven-gene concatenate (hsp65, rpoB, 16S rRNA, smpB, sodA, tmRNA, and tuf) showing the position of Mycobacterium farcinogenes and M. senegalense within a branch that accommodates the rapidly growing nonphotochromogenic mycobacteria (thick arrow) and their close relationship to M. houstonense and M. fortuitum (thin arrow). The percentages of bootstrap values are shown next to the nodes. The tree was modified from Mignard and Flandrois [26].