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Linking the cell-cycle sliding-window model to oscillator phase and heat-shock phenotypes

Determine how the differential sliding-window mechanism used in the cell-cycle-based model of somitogenesis practically connects to the phase of the cell-cycle oscillator and accounts for heat shock–induced periodic anomalies, including mapping specific sensitive phases and reconciling them with somite commitment timing.

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Background

The cell-cycle model proposes moving activation windows that induce pulses to switch bistable states, potentially explaining heat-shock phenotypes. However, the practical connection to the cell-cycle phase and the mapping of sensitive phases remain unresolved.

Clarifying this linkage would test whether cell-cycle–based timing can robustly induce somite formation and how periodic perturbations propagate through the proposed mechanism.

References

It is, in particular, not entirely clear how the differential sliding window would practically connect to the phase of the cell cycle oscillator, and how the initial proposal that heat shocks disrupt specific phases in the cell cycle would be accounted for in this model.

Waves, patterns and bifurcations: a tutorial review on the vertebrate segmentation clock (2403.00457 - François et al., 1 Mar 2024) in Flow-based phase models