FIG 2.

Occurrence of putative EET genes in MAGs and the normalized abundance of EET genes in each MAG as measured by mapping reads to assembled contigs for read coverage and normalizing by the average coverage of single-copy conserved bacterial housekeeping genes in the metagenome (see Text S1 in the supplemental material for details). If multiple EET genes were identified in one MAG, their normalized abundances were very comparable since they were from the same MAG, and thus, the average normalized abundance from all EET genes in that MAG was reported. Therefore, the normalized abundance reported in this figure also indicates the significance of populations represented by these MAGs in the lake. *, MAGs with Fe(III)-reducing relatives; **, MAGs with Fe(II)-oxidizing relatives; +, the presence of putative EET genes.