Different kinds of genetic alterations detected in the GBS <i>cps</i> operon.

<p>(A) Distribution of 37 transposable elements (blue), 24 insertion or deletion (indels) targeting a single gene (light green) and 54 point mutations (dark green) scattered across the <i>cps</i> operon. Genes that are missing in one or more capsular types are shown with red font color in the operon diagram. (B) Deletions comprising more than a single gene are indicated with dotted lines; empty spaces represent the absence of <i>cps</i> genes in a specific capsular genotype. (C) Gene targets of capsule inactivation mutations that appeared as single events (blue arrows); the figures below the target genes indicate the number of strains presenting the individual mutation.