Figure 3.
Representation of clusterings of Mycobacterium isolates among 10 species of Mycobacterium. The tree is unrooted and is based on the nearest neighbor joining method for the 180- and 705-bp DNA sequences of the 16S and rpoB genes, respectively, from each of the isolates. Stability of the clusters were evaluated by use of 1000 cycles of bootstrapping (values on tree branches). The six isolates that are assigned to different clusters, depending on the gene sequence used, are highlighted in gray (see text for discussion).
