Simulation of the Clock and Wavefront Mechanism

Simulation of the Clock and Wavefront Mechanism - The segmentation clock is modeled here as a population of oscillating cells, whose cyclic gene expression phase is represented in blue in the posterior end of the extending embryonic axis. This corresponds to the tailbud and presomitic mesoderm (PSM). As cells transit through the PSM, they slow their oscillations, which gives rise to traveling stripes of expression, and stop at an arrest front (black line) where their oscillatory phase...