Figure 7
From: Sequence permutations in the molecular evolution of DNA methyltransferases
Diagram illustrating a putative evolutionary history of the M.Sfi I-M.Mwo I gene pairs according to the "cut-and-paste" mechanism. Red vertical bars denote ends generated by endo- or exo-nucleolytic cleavage (red "PacMan" faces). Red arrows delineate points of insertion of gene fragments. Other labels follow the legend to Figure 5.