Figure 4: Neighbor-joining tree based on 16S rRNA gene sequences showing the phylogenetic relationship between strain PNP3, PNP6, PNP8 and their related genera (equence was downloaded from GenBank). Their names and respective accession numbers are given in the tree. Bootstrep Values (expressed as percentage of 1000 replications) of more than 60 are shown at branch points. Space bar represents 0.02 substitutions per site.