遗传 ›› 2003, Vol. 25 ›› Issue (5): 620-622.

• 论文 • 上一篇    下一篇

拟南芥SUPERMAN基因表观突变的研究进展

唐荣华1;2;张君诚2;庄伟建2;吴为人2 TANG Rong-Hua1;2;ZHANG Jun-Cheng2;ZHUANG Wei-Jian2;WU Wei-Ren2   

  1. 1.广西农业科学院经济作物研究所,广西 南宁 530007; 2.福建农林大学作物科学学院,福建 福州 350002 1.Institute of Cash Crops,Guangxi Academy of Agricultural Science,Nanning,Guangxi,530007,China; 2. College of Crop Science,Fujian Agriculture & Forestry University,Fuzhou,Fujian,350002,China
  • 收稿日期:1900-01-01 出版日期:2003-10-10 发布日期:2003-10-10

Progress of the SUPERMAN Epigenetic Mutation in Arabidopsis

  • Received:1900-01-01 Online:2003-10-10 Published:2003-10-10

摘要: 本文综述了拟南芥SUPERMAN基因表观突变体clark kent(clk)的表型、基因型、DNA甲基化及表观突变机制等方面的研究进展。主要研究结果有:clk是SUPERMAN(SUP)的等位基因,能遗传但不稳定,其对称位点(CpG和CPXPG)和非对称位点的胞嘧啶高度甲基化,伴随着SUP转录水平的下降;CpG和CPXPG胞嘧啶甲基转移酶分别是METHYLTRANSFERASE1(MET1)和受KRYPTONITE基因调控的CHROMOMETHYLASE3 (CMT3)。
Abstract:The SUPERMAN gene in Arabidopsis has its epigenetic mutants (the clark kent alleles,clk). The phenotype of clk and its genotype and methylated patterns and the epi-mutation mechanisms of SUPERMAN were summarized in the review. Heritable but unstable sup epi-alleles are associated with nearly identical patterns of excess cytosine methylation within the SUP gene and a decreased level of SUP RNA. The methylation of cytosine at CpG and CPXPG is controlled by METHYLTRANSFERASE1(MET1)and CHROMOMETHYLASE3 (CMT3) which is regulated by KRYPTONITE gene,respectively.

关键词: SUPERMAN, 拟南芥, Arabidopsis, 表观突变
Key words,
甲基化