Distribution of virulence-associated orthologous groups across eleven Vibrionaceae genomes. The presentation is as in Figure 3, except the dendrogram is eliminated to save space and virulence-associated proteins (both unique and orthologous) are shown as vertical red bars. In addition to the well-known genomic islands, three regions (A, B, and C) that were identified in this study and are discussed in the text are shown, along with the Che Cluster II and III regions. These regions are marked Che II and Che III respectively. Che Cluster I is within region C.