水稻SPL家族转录因子的生物学功能研究进展  

Research Progress in Biological Functions of SPL Family Transcription Factors in Rice

作　　者：胡丽 杨范敏 陈薇兰[2] 袁华[2] HU Li;YANG Fanmin;CHEN Weilan;YUAN Hua(College of Agriculture,Forestry and Health,The Open University of Sichuan,Chengdu 610073,China;State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Rice Research Institute,Sichuan Agricultural University,Chengdu 611130,China)

机构地区：[1]四川开放大学农林卫生学院,成都610073 [2]四川农业大学水稻研究所/西南作物基因资源挖掘与利用国家重点实验室,成都611130

出　　处：《中国水稻科学》2024年第3期223-232,共10页Chinese Journal of Rice Science

基　　金：国家自然科学基金资助项目(32272063);四川开放大学校级科研资助课题(KTNJZJ2021002Y)。

摘　　要：SPL(SQUAMOSAPROMOTER-BINDINGPROTEIN-LIKE)家族蛋白是植物特有的一类多功能转录因子。水稻中有19个OsSPL基因,所编码蛋白均含有一个高度保守的SBP结构域,该结构域负责与下游靶基因的核心基序GTAC结合,调控靶基因表达。OsSPL的表达会受到OsmiR156/529/535和多种因子调控。研究表明OsSPL在水稻根系发育、叶舌叶耳发育、株型和穗型形成、籽粒发育和胁迫响应等多个生物学过程中发挥重要作用,是水稻生长发育的调控枢纽。本文综述了水稻OsSPL家族的系统进化与结构特征、表达调控及生物学功能研究进展,并对其研究前景进行了展望。SPL(Squamosa Promoter-binding protein-like)family proteins are plant specific multifunctional transcription factors.There are 19 OsSPL genes in rice,all of which contain a highly conserved SBP domain,which is responsible for binding to the core motif GTAC of the downstream target gene to regulate the target gene expression.The expression of OsSPL is regulated by OsmiR156/529/535 and various factors.Studies have shown that OsSPL plays important roles in many biological processes of rice,including root development,ligule and auricles development,the formation of plant architecture and panicle morphology,grain development and stress response,and is a regulatory hub for rice growth and development.In this review,we summarized the research progress of the OsSPL family in rice,including its phylogenetic evolution,structural characteristics,expression regulation and biological functions,and the research prospects were also discussed.

关 键 词：OsSPL 转录因子 OsmiR156 表达调控 生物学功能 

分 类 号：S511[农业科学—作物学]