华北农学报 ›› 2008, Vol. 23 ›› Issue (4): 28-31. doi: 10.7668/hbnxb.2008.04.007

所属专题: 小麦 生物技术

• 论文 • 上一篇    下一篇

小麦与叶锈菌互作前后基因组甲基化模式分析

付胜杰1, 王晖2, 冯丽娜1, 李星1, 王珅1, 杨文香1, 刘大群1   

  1. 1. 河北农业大学 植物保护学院植物病理系,河北省农作物病虫害生物防治工程技术研究中心,河北 保定 071001;
    2. 济宁医学院,山东 济宁 272013
  • 收稿日期:2008-02-25 出版日期:2008-08-28
  • 通讯作者: 杨文香(1966-),女,河北沧州人,博士,教授.博士生导师,主要从事小麦锈病研究;刘大群(1958-),男,河北石家庄人,博上,教授,博士生导师,主要从事植物病害生物防治与分子植物病理学研究
  • 作者简介:付胜杰(1978-),男,山东济宁人,硕士,主要从事小麦锈病研究
  • 基金资助:
    国家“973”专项(2005CCA01600);国家“十一五”支撑计划(2006BAD08A05)

Analysis of DNA Methyiation Related on the Interaction between Wheat and Wheat Leaf Rust

FU Sheng-jie1, WANG Hui2, FENG Li-na1, LI Xing1, WANG Shen1, YANG Wen-xiang1, LIU Da-qun1   

  1. 1. Department of Plant Pathology,College of Plant Protection,Agricultural University of Hebei,Baoding 071001,China;
    2. Jining Medical College,Jining 272013,China
  • Received:2008-02-25 Published:2008-08-28

摘要: 首次使用甲基化敏感扩增多态性(MSAP)技术分析两种小麦材料近等基因系TcLr19及其感病亲本Thatcher的甲基化水平,同时比较了苗期接种叶锈菌生理品种THTT前后基因组DNA胞嘧啶甲基化模式。60对选扩引物对接种前后的小麦DNA进行全基因组筛选,共得到3 554个片段。其中998个片段是两种甲基化模式中的一种,小麦近等基因系TcLr19及其感病亲本Thatcher的甲基化水平约为28.1%。在所有的引物中,并没有直接分离得到接菌前后的甲基化模式的差异。结果初步表明,叶锈菌可能并没有诱导植物基因组DNA胞嘧啶位点的甲基化模式变化。

关键词: DNA甲基化, 小麦叶锈菌, 甲基化敏感扩增多态性, 抗病性

Abstract: DNA methylation is known to play an important role in the regulation of gene expression in eukaryotes. The wheat near-isogenic line TcLr19 and Thatcher is race-specific resistance and compatible in the interaction with Puccinia triticina respectively. Using methylation -sensitive amplified polymorphism( MSAP)analysis,we compared the patterns of cy- tosine methylation in TcLr19 and Thatcher that had been inoculated with Puccinia triticina,subjected to left untreated. In all,3 554 DNA fragments,each representing a recognition site cleaved by either or both of two isoschizomers,were amplified using 60 pairs of selective primers. A total of 998 sites were found to be one of the methylated. The results suggest that no differences in cytosine methylation exist between seedlings inoculated and those unchallenged.

Key words: DNA methylation, Puccinia triticina, MSAP, Resistance

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引用本文

付胜杰, 王晖, 冯丽娜, 李星, 王珅, 杨文香, 刘大群. 小麦与叶锈菌互作前后基因组甲基化模式分析[J]. 华北农学报, 2008, 23(4): 28-31. doi: 10.7668/hbnxb.2008.04.007.

FU Sheng-jie, WANG Hui, FENG Li-na, LI Xing, WANG Shen, YANG Wen-xiang, LIU Da-qun. Analysis of DNA Methyiation Related on the Interaction between Wheat and Wheat Leaf Rust[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(4): 28-31. doi: 10.7668/hbnxb.2008.04.007.

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