植物群体DNA甲基化研究进展  

Research Progress in DNA Methylation in Plant Population

作　　者：邹枚伶[1,2,3] 夏志强 王文泉[1,2,3] ZOU Meiling;XIA Zhiqiang;WANG Wenquan(Institute of Tropical Biosciences and Biotechnology,CATAS,Haikou,Hainan 571101,China;Hainan University,Haikou,Hainan 570228,China;Huazhong Agricultural University,Wuhan,Hubei 430070,China)

机构地区：[1]中国热带农业科学院热带生物技术研究所,海南海口571101 [2]海南大学,海南海口570228 [3]华中农业大学,湖北武汉430070

出　　处：《热带农业科学》2021年第4期49-59,共11页Chinese Journal of Tropical Agriculture

基　　金：海南省自然科学基金项目(No.319QN303);滇桂黔石漠化地区特色作物产业发展关键技术集成示范项目(No.SMH2019-2021);中国热带农业科学院基本科研业务费专项资金(No.1630052020031)。

摘　　要：DNA甲基化是表观遗传学的重要组成部分,通常发生在植物胞嘧啶碱基中,包含CG、CHG、CHH三种类型。植物群体中DNA甲基化的变异是植物表型和基因表达变异的重要来源之一。对植物群体DNA甲基化的研究,弥补了群体遗传学中不符合孟德尔遗传定律的表型的重要认识,有利于进一步阐明群体表观遗传变异的遗传来源、因果关系,能更清楚地解释植物对于生长环境的适应性以及植物种内和种间多样性,对于解析表观遗传与复杂表型之间的关系也至关重要。本文主要回顾了植物群体中DNA甲基化在进化、遗传多样性、群体遗传稳定性与变异,及其在基因表达中的作用研究进展,以及展望了植物群体DNA甲基化新的研究手段和研究主题方面的前景,旨在为植物群体DNA甲基化研究提供帮助。DNA methylation,one of the important parts of epigenetics,usually occurs in plant cytosine bases,including CG,CHG and CHH.The variation of DNA methylation,as an important source of phenotypic and functional diversity,can complement genetic variation in plant population.The DNA methylation researches in plant population are valuable in elucidating the origins and causal factors of epigenetic variation of plants.Furthermore,these researches are also important in explaining the plant environment adaptability,genetic diversity within and between species,as well as the relationship between epigenetic and complex phenotypes.An overview was made of the latest research progress in DNA methylation in evolution,genetic diversity,genetic stability and variation in plant population,and the role of DNA methylation in gene expression.And an outlook for the new research methods and research topics of DNA methylation was also made in order to provide reference for research of DNA methylation in plant population in the future.

关 键 词：DNA甲基化 进化 遗传多样性 遗传与变异 植物群体 

分 类 号：Q786[生物学—分子生物学]