Fig. 5

Gene clusters for TNSSs identified in the 84 Pectobacterium genomes. a Physical maps of Type I, II, III, IV, and VI secretion systems. Red colored arrows indicate known genes involved in the protein secretion systems. b Map showing the presence (blue feature) or absence (grey feature) of each type of secretion systems gene cluster, with a maximum likelihood phylogenetic tree based on the core genes of all the tested strains. a-c represents different subtypes of a given secretion system gene cluster; 1–2 represent the number of the copies of Type IV secretion system gene clusters