Fig 5. Phylogenetic tree of the 339 MOB_P5/HEN relaxases.

The colors of the columns at the right of the tree indicate, from the left to the right, the host Order, the host Family and the presence or absence of the rop gene in the plasmid. The asterisk next to the first column at the right of the tree represents the only relaxase clustered with plasmids of other Order. The phylogenetic tree was inferred following the best-fit model, JTT+F+I+G4.