Yang Zhen, Peng Xuanming, Zhang Yiyan, Zhang Yuanhai, Zhang Yong
Institute of Nuclear Agricultural Sciences and Space Mutagenesis Breeding, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, China.
Hunan Province Engineering Technology Research Center for Agricultural Bio-irradiation, Changsha 410125, Hunan, China.
Sheng Wu Gong Cheng Xue Bao. 2016 Dec 25;32(12):1642-1653. doi: 10.13345/j.cjb.160226.
Chemical modification of DNA bases in recent years has been one of the hot areas of life science research. DNA methylation is a common epigenetic phenomenon and can change the genetic performance without changing the DNA sequence. Various stress factors can induce the variation of DNA methylation in plants, but the response mechanism is still unknown. In this paper, the progress of DNA methylation in plants was reviewed. In combination with the researchconclusions of our own research group, the DNA methylation variation induced by 7Li ion beam and gamma ray was reported to provide a basis for DNA methylation, which may be involved in the phenotypic plasticity of plants.
近年来，DNA碱基的化学修饰一直是生命科学研究的热点领域之一。DNA甲基化是一种常见的表观遗传现象，能够在不改变DNA序列的情况下改变遗传表现。多种胁迫因素可诱导植物DNA甲基化发生变异，但其响应机制仍不清楚。本文对植物DNA甲基化的研究进展进行了综述。结合本课题组的研究结论，报道了7Li离子束和γ射线诱导的DNA甲基化变异，为可能参与植物表型可塑性的DNA甲基化提供依据。
