水稻抽穗期途径基因的磷酸化、泛素化研究进展  

Advances in Research on the Modification of the Heading Date Genes in Rice by Phosphorylation and Ubiquitination Pathways

作　　者：王婧莹 赵广欣 邱冠凯 方军[1,2] WANG Jingying;ZHAO Guangxin;QIU Guankai;FANG Jun(Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院东北地理与农业生态研究所,黑龙江哈尔滨150081 [2]中国科学院大学,北京100049

出　　处：《中国水稻科学》2022年第3期215-226,共12页Chinese Journal of Rice Science

基　　金：国家自然科学基金资助项目(U20A2025);省院科技合作专项(2021SYHZ0032)。

摘　　要：水稻是一种广泛种植的兼性短日照植物。水稻抽穗期是直接影响产量和品种地域适应性的重要农艺性状。因此,研究该性状的影响因素并使植株在适宜的时间抽穗具有重要意义。水稻抽穗期作为一个复杂的数量性状,受内在基因网络和外界光温等条件的共同调控。目前,已经鉴定和克隆出多个控制抽穗期的关键基因,发现磷酸化和泛素化修饰在抽穗期分子机制中起重要作用。本文介绍了水稻抽穗期光周期途径的分子机制,重点阐述了磷酸化级联反应和泛素26S蛋白酶体系统对抽穗期调控的研究进展,旨在为挖掘调控抽穗期的新作用机制和改良品种地域适应性提供理论依据和实践指导。Rice is a facultative short-day plant that is widely cultivated.Heading date(also known as flowering time) of rice is an important agronomic trait that directly affects grain yield and regional adaptability of rice varieties.Therefore,it is of great significance to study the influencing factors of this trait and make the plants bloom at appropriate time.Heading date,as a complex quantitative trait,is regulated by internal genetic network and exogenous factors such as photoperiod and temperature.At present,several key genes controlling heading date have been identified and cloned.It is found that phosphorylation and ubiquitylation play an important role in the molecular mechanism of rice heading date.This paper introduces the molecular mechanism of photoperiod pathway of heading date,and expounds the progress in research on the regulation of phosphorylation cascade and ubiquitin 26S proteasome system on flowering time,aiming at laying a theoretical basis and providing practical guidance for the new mechanism in regulating heading date,and for regional adaptability of improved varieties.

关 键 词：水稻 抽穗期 磷酸化 泛素化 

分 类 号：S511[农业科学—作物学]