Figure 5
From: Evolution by flight and fight: diverse mechanisms of adaptation by actively motile microbes
Selection on fitness at swarm fronts caused convergent evolution of the Frz chemosensory system in most treatments. Representations of the frz operon in M. xanthus. (a) frz mutations in A+S+ populations. Black and gray arrows indicate mutations in hard- and soft-agar populations, respectively. Numbers indicate mutated amino-acid positions and letters indicate amino-acid changes. (b) Focus on the frzF gene highlighting regions encoding predicted functional domains as determined by Pfam (pfam.sanger.ac.uk/). (c, d) frz mutations in A−S+ and A+S− populations, respectively. Asterisks indicate stop codons.
