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The Repertoire of ICE in Prokaryotes Underscores the Unity, Diversity, and Ubiquity of Conjugation

Figure 6

Phylogenetic analysis of a non-redundant subset of VirB4 proteins (only one protein per cluster of proteins >90% identical was used).

Top: phylogeny of VirB4 with groups cartooned together. Bootstrap values above 75% are depicted. Bottom: phylogeny of VirB4 within MPFT (in gray an outgroup to root the tree) with an indication if the gene is encoded in a chromosome (black circles) or in a plasmid (red).

Figure 6