表观遗传调控植物分枝/分蘖研究进展  

Research Progresses on Epigenetic Regulation of Plant Branching/Tillering

作　　者：刘婷 王天浩 淳雁[1] 李学勇[1] 赵金凤[1] Ting Liu;Tianhao Wang;Yan Chun;Xueyong Li;Jinfeng Zhao(National Key Facilty for Crop Gene Resource and Genetic Improvement/nstitute of Crop Sciences,Chinese Academy of Agricultural Sciences,Bejing100081,China)

机构地区：[1]中国农业科学院作物科学研究所/农作物基因资源与基因改良国家重大科学工程,北京100081

出　　处：《植物学报》2022年第4期532-548,共17页Chinese Bulletin of Botany

基　　金：山东省重点研发计划(No.2021LZGC020);国家自然科学基金(No.31670279,No.31271311)。

摘　　要：分蘖是禾本科植物特有的分枝类型,是影响作物产量的关键因素之一。分枝/分蘖数由叶腋处侧生分生组织的数量和侧芽的活性共同决定。表观遗传修饰调控植物生长发育的各个方面,但是如何调控植物的分枝/分蘖数还未见系统报道。该综述归纳了表观遗传调控侧生分生组织的形成和侧芽向外生长两个方面,并展望了表观遗传在调控植物分枝/分蘖中的研究方向,以期为通过表观遗传修饰改良作物品种的育种途径提供理论指导。Tillers are one type of branches unique to graminaceous plants. Branch/tiller number is one of the key factors in determining crop yield. The number of branches/tillers is determined by both the number of axillary meristems formed in the leaf axils and the activity of lateral buds. Epigenetic modification regulates various processes of plant growth and development, but how epigenetic modifications regulate plant branch/tiller number has not been systematically reported.This review summarized the latest research progresses in epigenetic regulation of axillary meristem formation and lateral bud outgrowth, and proposed the future research fields of epigenetic regulation of plant branching/tillering, which will provide theoretical guidance for the breeding of improved crop varieties through epigenetic modifications.

关 键 词：植物分枝/分蘖 表观遗传修饰 侧生分生组织 侧芽 侧芽向外生长 

分 类 号：Q945[生物学—植物学]