C类花器官特征基因AGAMOUS(AG)调控植物花分生组织维持与终止研究进展

花分生组织的维持与终止在植物花器官发生和世代交替起着至关重要的作用。成功的花分生组织决定能够确保植物正常的生殖发育和生命周期进程。诸多研究表明AGAMOUS(AG)基因作为花器官分化和开花决定的主效调节因子,能够协调花发育过程中多种细胞命运决定。然而,关于AG参与调控植物世代交替及花分生组织维持与终止的分子调控机制尚不清晰。综述了近年来AG基因参与调控植物花分生组织维持与终止的研究进展及现状,以期为深入研究植物花器官分化过程中干细胞的维持和终止,以及干细胞活动与其他发育过程之间的分子调控过程提供参考。

Advances in the Maintenance and Termination of Floral Meristem Regulated by C-type Floral Organ Gene AGAMOUS(AG)

The maintenance and termination of floral meristems plays key role in the floral organogenesis and metagenesis of plant.Successful floral meristems determinacy ensures the normal reproductive development and life cycle progression of plants.Many studies have shown that AGAMOUS(AG)gene,as a master regulator of both floral organ differentiation and floral determinacy,can coordinate various cell fate decisions in flower development.However,the molecular mechanism of AG involvement in the regulation of plant metagenesis and floral meristem maintenance and termination remains unclear.This paper summarized such research progress and current status of AG gene in regulating the floral meristem maintenance and termination in recent years,with a view to providing a reference for further study of the maintenance and termination of stem cells during floral organ differentiation as well as the molecular regulation between stem cell activity and other developmental processes.