Figure 4.
The normalized abundances of PEGs within the ‘carbon monoxide induced hydrogenase' RAST category are shown. For each PEG (bars), the normalized abundance of that PEG in a given subsurface metagenomes is shown (dots). The size and color of the dot represents the percent relative abundance of Firmicutes identified in the metagenome. The TT107 metagenome (this study) is represented by a large, black circle (45% relative abundance of Firmicutes in the unassembled metagenome).