Figure 3

Visualization of the pan-genome. The pie symbolizes the entire pan-genome, and the 14 sectors correspond to various groups of gene clusters, where the color of the sector shows the detection probability, also indicated by the numbers. The blue sectors are highly conserved (core) genes. These are found in (almost) all genomes. The greenish sectors are accessory (shell) genes found in (large) subsets of genomes. The orange/pink sectors are the rarely occurring (cloud) genes. Most of these have not yet been described. Only one or a few such genes are found in each genome, but if we keep on sequencing they will make up a large proportion of the pan-genome.