DNA甲基化的植物学意义及其研究方法

Journal of Tianjin Agricultural University ›› 2017, Vol. 24 ›› Issue (1): 77-82.

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Botany Meaning and Research Methods of DNA Methylation

LI Kun-yi¹, YUAN Wen-ya², WANG Peng-wen^{1,Corresponding Author}

1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China;
2. Tianjin Crops Research Institute, Tianjin 300384, China

Received:2016-07-14 Online:2017-03-31 Published:2019-10-15

Abstract

Abstract: In recent years, chemical modification in DNA bases has been one of the hottest areas of life science research. DNA methylation as one kind of modification way of DNA sequences, is an important epigenetic mechanism. It can regulate the expression of many vital genes while the base compositions of these genes don’t change, therefore DNA ethylation is very important to the plant’s grow progress. For the plants under environmental stress, the number of DNA methylation had changed during the regulation of gene expression. This paper introduces the mechanisms and biological functions of DNA methylation in plant, and its functions in plant response to environmental stress, and the principle and characteristics of the method for DNA methylation analysis. This would enable us to better understand the methylation of plant DNA and its response to environmental stress, and provide a theoretical reference for plant stress tolerance research and crop genetic improvement.

Key words: plant DNA methylation, gene expression and regulation, DNA methyltransferase, biological function

CLC Number:

LI Kun-yi, YUAN Wen-ya, WANG Peng-wen. Botany Meaning and Research Methods of DNA Methylation[J]. Journal of Tianjin Agricultural University, 2017, 24(1): 77-82.

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Botany Meaning and Research Methods of DNA Methylation

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