with lower bootstrap percentage (63 to G. polyisoprenivorans VH2 and 65 to G. westfalica Kb1). Beside, Streptomyces sp. CFMR-7 was placed in a monophyletic taxon with the two Streptomyces strains (bootstrap ¼ 100), indicating its close relationship with Streptomyces sp. K30 and Streptomyces sp. LCIC4.