Fig. 1From: Insights into Streptomyces spp. isolated from the rhizospheric soil of Panax notoginseng: isolation, antimicrobial activity and biosynthetic potential for polyketides and non-ribosomal peptidesNeighbor-joining tree of KS amino acid sequences of isolates from this study and reference sequences of known representative PKS I. The scale bar indicates 0.20 substitutions that occur per site. Percentage bootstrap values of neighbor-joining analysis from 1000 resamplings are indicated at the nodesBack to article page