Figure 3From: Changes in the genomic content of circulating Bordetella pertussis strains isolated from the Netherlands, Sweden, Japan and Australia: adaptive evolution or drift?Functional categories of core and variable genes in B. pertussis. The height of each bar represents the number of variable (purple), core (blue) and genes present in Tohama I (orange) indicated in specific gene categories. The lines indicate the percentages of the total, variable genes (yellow), core genes (blue) or genes in Tohama I (purple) in each category.Back to article page