Fig. 5

Proportion of bacteriophage genomes encoding MuF per phage family and lifestyle. Proportion of tailed-phage genomes encoding a MuF protein (MuF+, in orange) or none (MuF–, in black) according to the phage family (left) and the phage lifestyle (center). Proportion of short (in blue), with toxin domain (in red), or with unknown domain (in gray) MuF proteins and their repartition within virulent and temperate tailed phages (right). There is a significant association of muf genes with Siphoviridae compared to other families of Caudoviridae (p < 0.0001, two-tailed Fisher's exact test), and there is a significant association of muf genes with temperate compared to virulent phages (p < 0.0001, two-tailed Fisher's exact test). The association of muf toxin genes with temperate phages is not significant (p = 0.055, two-tailed Fisher's exact test) due to the small number of muf toxin genes in the phage dataset