期刊文献+

植物DNA甲基化调控因子研究进展 被引量:7

DNA methylation regulating factors in plants
下载PDF
导出
摘要 DNA甲基化是重要的植物基因组表观遗传修饰。植物中DNA甲基化的建立与维持是由多个调控因子协同作用的结果。不同的甲基转移酶类能直接作用于不同位点胞嘧啶甲基化,其中MET1主要负责保持原初CG位点的甲基化,CMT3主要负责保持CNG位点的甲基化,并由DRM与CMT3的协同从头甲基化作用来补偿其他相关序列的甲基化。这些甲基转移酶与染色质重塑解旋酶和组蛋白修饰因子协同改变染色质的结构,行使表观遗传的功能。DNA转葡糖基酶有去甲基化活性从而减轻基因沉默。文章综述了以上植物DNA甲基化调控因子的生物学功能及其之间的相互作用和近年来的研究进展,以更好的理解DNA甲基化的建立、保持和去除的机制。 DNA methylation is an important epigenetic modification and multiple factors interact to regulate the establishment and maintenance of DNA methyaltion in plant genome. Different methylation sites require different cytosine methyltransferases, which contribute to the modification of chromatin structure and mediate epigenetics with chromatin remodeling enzymes and histone modifying factors. DNA glycosylases can remove DNA methylation and alleviate silencing. The functions and interactions of DNA methylation regulating factors, the establishment, mantainace and removement mechanisms of DNA methylations are reviewed in this paper.
出处 《遗传》 CAS CSCD 北大核心 2008年第4期426-432,共7页 Hereditas(Beijing)
基金 国家自然科学基金(编号:30730077,30571472) 国家“十一五”科技支撑计划课题(编号:2006BAD03A01)~~
关键词 DNA甲基化 表观遗传 组蛋白 染色质 DNA methylation epigenetics histones chromatin
  • 相关文献

参考文献47

  • 1Grant-Downton RT,Dickinson HG.Epigenetics and its implications for plant biology.1.The epigenetic network in plants.Annals of Botany,2005,96(7):1143-1164.
  • 2Bester TH.The DNA methyltransferases of mammals.Hum Mol Genet,2000,9(16):2395-2402.
  • 3Finnegan EJ,Kovac KA.Plant DNA methyltransferases.Plant Mol Biol,2000,43(2):189-201.
  • 4Can X,Spnnger NM,Muszynski MG Phillips RL,Kaeppler S,Jacobsen SE.Conserved plant genes with similarity to mammalian de novo DNA methyltransferases.Proc Natl Acad Sci USA,2000 97(9):4979-4984.
  • 5Cno X,Jacobsen SE.Role of the Arabidopsis DRM methyltransferases in de nero DNA methylation and gene silencing.Curr Biol,2002,12(13):1138-1144.
  • 6Chan SW,ZiIberman D,Xie Z,Johansen LK,Carrington JC,Jacobsen SE.RNA silencing genes control de novo DNA methylation.Science,2004,303(5662):1336.
  • 7Xie Z,Johansen L,Gustafson A,Kasschau KD,Lellis AD,Zilberman D,Jacobsen SE,Carrington JC.Genetic and functional diversification of small RNA pathways in plants.PLoS Biol.2004,2(5):642-652.
  • 8Cao X,Aufsatz W,Zilberman D,MeRe MF,Huang MS,Matzke M,Jacobsen SE.Role of the DRM and CMT3 methyltransferases in RNA-directed DNA methylation.Curr,Biol,2003,13(24):2212-2217.
  • 9Zilberman D,Cao X,Johansen LK,Xie Z,Carrington JC,Jacobsen SE.Role of Arabidopsis ARGONAUTE 4 in RNA-directed DNA methylation triggered by inverted repeats.Curr Biol,2004,14(13):1214-1220.
  • 10Finnegan EJ,Dennis ES.Isolation and identification by sequence homology of a putative cytosine methyltrans-ferase from Arabidopsis thaliana.Nucleic Acids Res,1993,21(10):2383-2388.

同被引文献77

引证文献7

二级引证文献17

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部