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Distribution of acsF and bchE genes among sequenced phototrophic Proteobacteria, along with the presence of orthologs of rsp_6110
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Modified from (26). ●, gene present in PGC; ○, gene present outside PGC; X, gene absent. The red box indicates an identical pattern of presence/absence of orthologs of rsp_6110 and acsF among Alphaproteobacteria. AAP, aerobic anoxygenic phototroph; PNB, purple nonsulfur bacterium; PSB, purple sulfur bacterium.
