Evolutionary dynamics of UQ FMOs in the proteobacterial lineage.

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Evolutionary dynamics of UQ FMOs in the proteobacterial lineage. Evolutionary dynamics of UQ FMOs in the proteobacterial lineage. The schematic phylogenetic tree is based on 16S rRNA sequences of the proteobacterial subclasses. The potential innovation of the UQ molecule in the alpha-, beta-, and gammaproteobacterial common ancestor is indicated. The different UQ FMO-encoding genes are represented within the three proteobacterial subclasses and their common ancestors. “anc” stands for the ancestral forms of the respective genes. The duplication of ubiI that gave rise to ubiF and the duplication that occurred for ubiM and ubiL are indicated by solid arrows. Potential horizontal gene transfer events are shown with dashed-line arrows. Ludovic Pelosi et al. mSystems 2016; doi:10.1128/mSystems.00091-16