Fig. 4

The phylogeny of Kolobok families. This Bayesian tree is based on the alignment of DDD/E transposases spanning from the first D to the last catalytic E, inferred using the LG model. The sequence alignment is provided in Additional file 3: Data S5. The root is placed in the Kolobok1 lineage for its ancestral features: the lack of a zinc finger motif between the C/DxxH motif and the last catalytic residue (E). Some established or obvious lineages are color-marked on the tree. The representative signature strings of each lineage or group are shown on right. Three red vertical lines inside the bar represent the positions of the DDE triad