A spatial model of the plant circadian clock reveals design principles for coordinated timing.

ABSTRACT: Individual plant cells possess a genetic network, the circadian clock, that times internal processes to the day-night cycle. Mathematical models of the clock are typically either "whole-plant" that ignore tissue or cell type-specific clock behavior, or "phase-only" that do not include molecular components. To address the complex spatial coordination observed in experiments, here we implemented a clock network model on a template of a seedling. In our model, the sensitivity to light varies across the plant, and cells communicate their timing via local or long-distance sharing of clock components, causing their rhythms to couple. We found that both varied light sensitivity and long-distance coupling could generate period differences between organs, while local coupling was required to genera

SUBMITTER: Greenwood M 

PROVIDER: S-EPMC8935279 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature