植物开花调控途径

Pathways of flowering regulation in plants

摘要:

开花是植物从营养生长转换为生殖生长的生理发育过程，受光周期、温度、激素、年龄等多个因素诱导，在植物生长和物种进化中处于核心地位。综合不断更新的开花分子遗传结果，将植物响应各种内源和外源信号启动开花的途径归纳为：经典的光周期途径、春化途径、自主途径、赤霉素途径和较新的年龄途径共5条。旨在描绘出这些不同途径间既独立又相互影响的复杂网络关系，为进一步探索和阐述更多植物的开花分子机理提供借鉴与参考。

Abstract:

Flowering, the floral transition from vegetative growth to reproductive growth, is induced by diverse endogenous and exogenous cues, such as photoperiod, temperature, hormones and age. Precise flowering time is critical to plant growth and evolution of species. The numerous renewal molecular and genetic results have revealed five flowering time pathways, including classical photoperiod pathway, vernalization pathway, autonomous pathway, gibberellins (GA) pathway and newly identified age pathway. These pathways take on relatively independent role, and involve extensive crosstalks and feedback loops. This review describes the complicated regulatory network of this floral transition to understand the molecular mechanism of flowering and provide references for further research in more plants.