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Neighbour-joining tree based on almost-complete 16S rRNA gene sequences showing the relationship between strain RB20T and RB56T and species of the genus Nocardia. Rhodococcus qingshengii djl-6T was used to root the tree. Asterisks donate branches that were also recovered in the maximum-likelihood tree (Fig. S1). Only bootstrap values above 50 % (1000 pseudoreplications) are shown. Bar, 0.005 substitutions per nucleotide position.
