Figure. Phylogenetic position of isolate 74023791 and 16 rapidly growing Mycobacterium species based on A) 16S rDNA, B) partial RNA polymerase subunit B, and C) partial heat shock protein 65 sequences analyzed by using the neighbor-joining method and Kimura's 2-parameter distance correction model. The support of each branch, as determined from 1,000 bootstrap samples, is indicated by the value at each node when >80% (as a percentage). M. tuberculosis was used as the outgroup species. Scale bars represent differences in nucleotide sequences.