Phylogenetic tree indicating the phylogenetic relationship of Streptomyces sp. strain AW19M42 relative to other Streptomyces species. The phylogenetic tree was made by comparing the 16S rDNA sequence of the Streptomyces sp. strain AW19M42 to the closest related sequences from both validated type strains and unidentified isolates. S. venezuelea is used as outgroup. All positions containing gaps and missing data were eliminated. There were a total of 1,389 positions in the final dataset. The bar shows the number of base substitutions per site.