Fig. 4: The antiviral arsenal is species specific.

a Number of systems and number of families of systems per species. Species with more than a hundred genomes were selected for this analysis. b, c Antiviral arsenal of two different species: Pseudomonas aeruginosa and Neisseria meningitidis. Each panel shows the distribution of the total number of systems in the species (top panel), the frequency of the 20 most common antiviral systems in prokaryotes in this species (bottom panel) and a phylogenetic tree of the species with the presence/absence of the 10 most common antiviral systems in prokaryotes. d Correlation at the species level between the number of prophages and the families of antiviral systems (linear regression, two sided Pearson r = 0.56, p-value = 0.008, light pink represents the confidence interval at 95%).