Fig. 1

Phylogenetic tree showing the relationships of M. tuberculosis K with other Mycobacterium species based on aligned sequences of the rpoB gene. 711 bp internal region was used for phylogenetic analysis. All sites were informative and there were no gap-containing sites. Phylogenetic tree was built using the Maximum-Likelihood method based on Tamura-Nei model by MEGA. Bootstrap analysis [37] was performed with 500 replicates to assess the support of the clusters. Bootstrap values over 50 are shown at each node. The bar represents 0.02 substitutions per site