Fig. 3

Expansion of the pan-genome compared with the core-genome for each functional category. The number of core genes in each functional category was normalized (yellow circle). The magnification of the pan genes compared with the core genes in each functional category is shown by the red circle. The letter below the circle represents the functional category: [J] Translation, ribosomal structure and biogenesis; [K] Transcription; [L] Replication, recombination and repair; [O] Posttranslational modification, protein turnover, chaperones; [T] Signal transduction mechanisms; [D] Cell cycle control, cell division, chromosome partitioning; [N] Cell motility; [M] Cell wall/membrane/envelope biogenesis; [U] Intracellular trafficking, secretion, and vesicular transport; [V] Defence mechanisms; [F] Nucleotide transport and metabolism; [E] Amino acid transport and metabolism; [P] Inorganic ion transport and metabolism; [C] Energy production and conversion; [H] Coenzyme transport and metabolism; [I] Lipid transport and metabolism; [Q] Secondary metabolites biosynthesis, transport and catabolism; [G] Carbohydrate transport and metabolism