Fig. 4From: Avoidance of recognition sites of restriction-modification systems is a widespread but not universal anti-restriction strategy of prokaryotic virusesFractions of Type II sites with different CB values. Bar height corresponds to the fraction of sites with the reduced number (CB < 1), the colored portion is for sites with CB < 0.8, and the hatched portion indicates the fraction with CB < 0.1. “Control” stands for the subset of Control dataset I with Type II sites and dsDNA genomes. a Comparison of temperate and non-temperate dsDNA viruses. b Comparison of the coliphages with or without the hydroxymethylase (HM) geneBack to article page