IGT基因家族调控作物株型研究进展  

Advances in IGT Gene Family Regulating Crops Morphology

作　　者：徐崟海 刘佳[1] XU Yinhai;LIU Jia(Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture and Rural Affairs,Oil Crops Research Institute,Chinese Academy of Agricultural Sciences,Wuhan 430062,China;Hubei Collaborative Innovation Center for Grain Industry,Engineering Research Center of Ecology and Agricultural Use of Wetland,Ministry of Education,College of Agriculture,Yangtze University,Hubei Jingzhou 434025,China)

机构地区：[1]中国农业科学院油料作物研究所,农业农村部油料作物生物学与遗传育种重点实验室,武汉430062 [2]长江大学农学院,湿地生态与农业利用教育部工程研究中心,主要粮食作物产业化湖北省协同创新中心,湖北荆州434000

出　　处：《生物技术进展》2022年第5期673-682,共10页Current Biotechnology

基　　金：国家自然科学基金项目(U19A2029);中国农业科学院科技创新工程项目(CAAS-ZDRW202105);中央级科研院所基本科研业务费专项(161017202203)。

摘　　要：紧凑株型与深根系结构是现代作物实现机械化种植和密植高产的理想株型形态,也是改良农作物遗传性状的目标之一。IGT基因家族参与作物株型的调节,主要由DRO1(DEEPERROOTING 1)、TAC1(TILLERANGLECONTROL 1)和LA1(LAZY 1)三个亚族组成,通过植物激素和相关蛋白的调控参与作物形态构建。以单子叶作物水稻、玉米以及双子叶模式植物拟南芥和作物油菜为代表,综述了IGT基因家族成员在调控单双子叶作物形态中的进展,特别是在分枝(蘖)角度和侧根向重力性中的相关机制及异同,以期为深入研究作物形态构建的调控机制和培育高产、耐密植以及适应机械化收获理想株型作物提供理论参考。The ideotype of crops ask for compact plant type and deep root structure,which is one of the objective of improving crop genetic traits to adapt for modern mechanization and high-density cultivation for high yield.The IGT gene family is mainly in⁃volved in the regulation of crop architecture,composed of three subfamilies:DRO1(DEEPER ROOTING 1),TAC1(TILLER ANGLE CONTROL 1)and LA1(LAZY 1).They participate in the gene network of crop morphology through the regulation of hor⁃mones and related proteins.This paper mainly summarized the progress of IGT gene family members in regulating the morphology of monocotyledon and dicotyledon crops,especially the similarities and differences in branching(tillering)angle and lateral root gravitropism.It provided theoretical value for further studying the regulation mechanism of crop morphological architecture and breeding roadmap for cultivating ideotype crops with high yield,high-dense cultivating tolerance and mechanical harvest.

关 键 词：IGT基因家族 单双子叶作物 植株形态 向重力性 密植 

分 类 号：S311[农业科学—作物栽培与耕作技术]