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. Author manuscript; available in PMC: 2012 Jan 15.
Published in final edited form as: Environ Sci Technol. 2010 Dec 16;45(2):719–725. doi: 10.1021/es102420r

Figure 2.

Figure 2

Neighbor-joining phylogenetic tree of 16S rRNA gene sequences recovered pre- and post-oxidation (100 d) from the column surface soil and selected close relatives. Clones from this study (in bold) follow the naming scheme of “pre” (pre-oxidation) and “post” plus an assigned number for identification purposes. Square brackets (in bold) include the number of sequences within an OTU represented by the clonal sequence shown. GenBank accession numbers are shown in parentheses for the selected reference sequences. Bootstrap values are indicated on nodes with an open (○) and closed (⚫) circle representing ≥95 and ≥50% bootstrap support, respectively. Thermus aquaticus YT-1 (L09663) was used as an outgroup (not shown). Sequences associated with groups PG1 and PG2 are indicated with an arrow.