Plants have the same variation in body clocks as that found in humans, according to new research that explores the genes governing circadian rhythms in plants. The research shows a single letter change in their DNA code can potentially decide whether a plant is a lark or a night owl.
https://www.eurekalert.org/pub_releases/2020-12/ei-pcb121720.php
https://www.eurekalert.org/pub_releases/2020-12/ei-pcb121720.php