水稻SPL家族转录因子的生物学功能研究进展
收稿日期: 2023-03-30
修回日期: 2023-05-17
网络出版日期: 2024-05-13
基金资助
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)
Research Progress in Biological Functions of SPL Family Transcription Factors in Rice
Received date: 2023-03-30
Revised date: 2023-05-17
Online published: 2024-05-13
SPL (SQUAMOSA PROMOTER-BINDING PROTEIN-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。
胡丽, 杨范敏, 陈薇兰, 袁华 . 水稻SPL家族转录因子的生物学功能研究进展[J]. 中国水稻科学, 2024 , 38(3) : 223 -232 . DOI: 10.16819/j.1001-7216.2024.230308
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.
Key words： OsSPL; transcription factor; OsmiR156; expression regulation; biological function
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