Fig. 4

Representative CRISPR-Cas systems types identified in this study. All of the 84 Pectobacterium genomes and 3 out-group Dickeya genomes were identified their CRISPR-Cas systems in this study. The strains with complete genomes were selected to show their CRISPR-Cas systems architectures here, and the detailed information of CRISPR-Cas systems in all of the tested genomes were given in Additional file 1: Table S5. The diagram features in black represented the genes encoding known Cas proteins, features in grey represented the genes predicted to encode hypothetical proteins of unknown function, and features in white represent CRISPR sequences. a I-F type of CRISPR-Cas, b I-E type of CRISPR-Cas, and c I-C type CRISPR-Cas systems in these complete genomes are shown