Research Progress of Plant DNA Methylation Under Abiotic Stress

doi:10.13560/j.cnki.biotech.bull.1985.2020-0330

Abstract

Abstract:

Abiotic stress,including high temperatures,droughts,colds,floods,and salinization,is usually not conducive to plant growth and development. In the long-term natural selection and evolution of plants,plants have formed a complete system to cope with the constantly changing environment. In eukaryotic cells,the expression of protein-coding genes is largely influenced by the state of chromatin. Epigenetic modifications,mainly including DNA methylation,histone modifications,histone variants,and some non-coding RNA（ncRNA）changes,will affect the structure and accessibility of chromatin,thereby altering the activity of gene expression. Recent studies have shown that epigenetic modification is widely involved in plant abiotic stress response and is important for plants to adapt to changing environments. As one of the most important epigenetic modifications,the role of DNA methylation in regulating abiotic stress responses has attracted widespread attention. This paper reviews the recent advances in plant DNA methylation and abiotic stress under DNA stress,with a view to providing a reference for using epigenetic variation to improve plant resistance to stress.

Key words: DNA methylation, abiotic stress, stress response

LIU Zhi-min, YANG Zhi-yi, JI Feng-dan, MEI Zhi-chao, YU Jia-hui, XIE Li-nan. Research Progress of Plant DNA Methylation Under Abiotic Stress[J]. Biotechnology Bulletin, 2020, 36(11): 122-132.

Figures/Tables 3

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