Fig. 1.

Diversity of staphylococcal phage genomes. a) Splitstree 3D representation into 2D space of the 205 staphylococcal phages illustrating shared phams generated from a total of 20,579 predicted genes. A total of 2139 phams (a group of genes with related sequences) of which 745 orphams (a single gene without related sequences) were identified. b) The assignment of A) clusters and B) subclusters are shown in coloured circles. The scale bar indicates 0.01 substitution. The spectrum of diversity reveals four clusters and 31 subclusters (A1-A2, B1-B21, C1-C6 and D1-D2) and one singleton (phage SPbeta-like). A Venn diagram was also included to visualize the amount of proteins allocated and shared across each cluster. Common phams among different clusters that are represented by intersections of the circles. There is no universal pham in staphylococci phage genomes