FIG 2.

Tn7 transposons disseminate genes across deep phylogenetic divides. (A) Hierarchical network of transposon communities (nodes), where each edge signifies the division of one community into another, smaller subcommunity. All communities are scaled by the total number of members and are colored if ≥80% of the members belong to the same phylum. (B) Expansion of the area shaded in gray, with subcommunities recolored and labeled with their lowest common ancestor (80% consensus), if present. (C) Network of 1,221 transposons (nodes) connected with edges that are weighted by the similarity between the respective two transposons. The shape of the node indicates if the transposon is inserted into the host’s chromosome or a plasmid.