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Methylation of a previously unmodified DNA sequence. Small interfering RNAs (siRNAs) in the RNA-directed DNA methylation pathway are well-known triggers of sequence-specific de novo methylation of cytosines in all sequence contexts. Silencing effector complex A multiprotein complex that elicits RNA in...
11. The roles of small RNAs in the regulation of agronomic traits of crops(Written by Yijun Qi) 12. Open questions in the study of RNA-directed DNA methylation(Written by Craig S. Pikaard) Figure 10. Establishment and maintenance of DNA methylation by RdDM. 原文链接: https://academic.oup....
RNA‐directed DNA methylation has an important developmental function in Arabidopsis that is masked by the chromatin remodeller PICKLEIn Arabidopsis, RNAヾirected DNA methylation (RdDM) is required for the maintenance of CHH methylation, and for de novo methylation in all (CG, CHG, and CHH) ...
Ding J, Shen J, Mao H, et al (2012) RNA-directed DNA methylation is involved in regulating photoperiod-sensitive male sterility in rice. Mol Plant.5:1210–1216 Engreitz JM, Sirokman K, McDonel P, et al (2014) RNA-RNA interactions enable specific targeting of noncoding RNAs to nascent...
【答案】：首先在植物中发现的一种RNA指导的沉默机制。类似于：RNA干扰(RNAi)，RdI)M也需要21～26nt的双链RNA片段。与短双链RNA同源的DNA序列被甲基化，从而使基因沉默。
Zhang H, He X, Zhu J-K (2013) RNA-directed DNA methylation in plants. RNA Biol 10:1593–1596 CentralA. Movahedi, W. Sun, J. Zhang, X. Wu, M. Mousavi, K. Mohammadi, T. Yin, Q. Zhuge, RNA-directed DNA methylation in plants, Plant Cell Rep. 34 (2015) 1857-1862....
1、RNARNA介导的介导的DNADNA甲基化甲基化RNA-directed DNA methylation: an epigenetic pathway of increasing complexity王 明强2015717011江苏省中国科学院植物研究所表观遗传表观遗传同卵双生:奥利维亚和伊莎贝拉同卵双生:奥利维亚和伊莎贝拉在基因的在基因的DNA序列不序列不发生改变的情况下,发生改变的情况下,基因表达...
RNA-directed DNA methylation 来自 万方 喜欢 0 阅读量: 99 作者: Mathieu,O.摘要: Double-stranded RNAs (dsRNAs) and their 'diced' small RNA products can guide key developmental and defense mechanisms in eukaryotes. Some RNA-directed mechanisms act at a post-transcriptional level to degrade target...
RNA聚合酶(DdRPs, DNA-dependent RNA polymerases)是由多亚基组成的复合物,负责转录生成不同类型的RNA,是中心法则的核心执行者。除了所有真核生物中均保守的Pols I-III外,植物则拥有两种由Pol II进化而来的特化的DdRPs, Pol IV和Pol V。两者均...