DNA methylation changes in response to sulfur dioxide stress in Arabidopsis plants

被引：7

作者：

Yi, Huilan ^{[1
]}

Li, Lihong ^{[2
]}

机构：

[1] Shanxi Univ, Sch Life Sci, Taiyuan 030006, Peoples R China

[2] Fisheries Res Inst Shanxi Prov, Taiyuan 030006, Peoples R China

来源：

2013 INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2013 ISEST) | 2013年 / 18卷

关键词：

Sulfur dioxide; Arabidopsis; DNA methylation; Gene expression; Genome stability; GENES; HYPERMETHYLATION; EXPRESSION;

D O I：

10.1016/j.proenv.2013.04.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sulfur dioxide (SO2) exposure causes alterations of DNA cytosine methylation in Arabidopsis genome. Analysis of methylation-sensitive amplified polymorphism (MSAP) revealed that SO2 induced methylation changes of cytosine in CCGG sites, in which hypermethylation is more than hypomethylation. Bisulfite sequencing showed that the methyaltion levels of cytosine in promoter regions of Arabidopsis genes encoding 1-aminocyclopropane-1-carboxylic acid synthase 6 and nitrilase 2 decreased accompanying with enhanced transcript levels. The global genome hypermethylation and locus-specific hypomethylation in Arabidopsis cells, which contribute to genome stability and gene regulation, can be considered as a very important regulatory mechanism for plants adaption to environmental stress. (C) 2013 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license

引用

页码：37 / 42

页数：6

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