摘要
Precise timing of flowering in plants is critical for their growth and reproductive processes.One factor controlling flowering time is the cycle of light and darkness within a day,known as the photoperiod.Plants are classified into long-day,short-day,and day-neutral plants based on light requirements for floral initiation.Although the molecular mechanisms that govern this differentiation remain incompletely understood,studies have consistently shown that the circadian clock plays a central role in regulating photoperiod response across diverse plant species.However,there is a scarcity of reviews describing the regulatory network linking the circadian clock with photoperiodic flowering.This review summarizes that regulatory network,focusing on the distinct roles of clock genes in long-day and short-day plants.We also discuss the strategies of clock gene mutations contributing to geographic variation in longday and short-day crops.
基金
This work was supported by Laboratory of Lingnan Modern Agriculture Project(NZ2021001)
State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources(SKICUSAa202007)
Natural Science Foundation of Guangdong Province(2022A1515011027,2021A1515012148)
the Double Firstclass Discipline Promotion Project(2023B10564004).
