Pseudomonas spp phylogenomic analysis. (A) Whole-genome based phylogenomic tree by using composition vector approach. Strains belonging to the P. fluorescens group are collapsed within the green branch. (B) Phylogenomic tree of strains in the P. fluorescens group. Subgroups I to V as described in this work, are highlighted in different colours. Scale shows kmer distribution divergence. Completed and draft genomes of the used P. fluorescens strains are listed in Additional file 1.