Additional file 3: Figure S3. of Shigella flexneri serotype 1c derived from serotype 1a by acquisition of gtrIC gene cluster via a bacteriophage

*Schematic diagram illustrating two hypotheses that could potentially explain the evolution of the serotype 1c strain. (A) The gtrIC insertion hypothesis. (B) The deletion of gtrIC hypothesis causing the loss of functional gtrIc modification. (DOCX 115 kb)