Genome structure
P. aeruginosa has the genome size of about 5.2 to 7 million base pairs (Mbp) with 65% Guanine + Cytosine content. It is a combination of variable accessory segments and a conserved core. The variable accessory genome is characterized by a set of genomic islands and islets from a primeval tRNA-integrated island type. The core genome consists of a low level of nucleotide divergence of 0.5% and a conserved synteny of genes, which means two