Fig. 5.

Model reproduces key qualitative experimental outcomes robustly to parameters. (A) Illustration of model for cells on single fiber (spindle geometry) and attached to two fibers (parallel geometry). Black lines indicate cell polarity p and gray lines indicate fibers. The red and blue lines indicate the past trajectory of the cells. A walk-past event is shown for the spindle configuration, and a training event is shown for the parallel configuration. (B) The fraction of walk-past events is shown for parameters randomly sampled from plausible values (SI Appendix); each dot is a different parameter set. Though changing parameters affects the overall fraction of walk past, walk past is common. (C) Comparisons between walk-past levels. Holding other parameters fixed, we change one element of the model and show the change in walk past for different parameters, with one point representing one parameter set, as in B. We see the spindle geometry always has more walk past than the parallel. Collisions where division occurs always have an increase in walk past for spindle and never have a decrease in walk-past behavior in parallel geometry.