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Phylogenetic relationships among Mycobacterium species derived from the hsp65 gene sequences (A) and the deduced sequences of the amino acids encoded by the Mycobacterium hsp65 gene (B), as constructed by maximum-parsimony analysis. The tree was rooted by using N. asteroides as the outgroup. Numbers on the branches indicate bootstrap proportions (100 replicates). Bar, 1.0 nucleotide or amino acid replacement. Available GenBank accession numbers are shown.
