摘要
目的:分析高温对菘蓝基因组DNA甲基化模式的影响。方法:采用甲基化敏感扩增多态性(methylation sensitiveamplification polymorphism,MSAP)方法,筛选36对选择性引物进行扩增。结果:扩增共得到1 612条清晰的带纹,共检测到82(5.1%)个CCGG位点在高温胁迫后发生了甲基化状态的改变,其中58(3.6%)个位点发生了超甲基化,24(1.5%)个位点发生了去甲基化。结论:温度是调节菘蓝基因组DNA甲基化模式的一个重要环境因子。
Objective: To investigate the effect of elevated temperature in genome cytosine methylation changes in Isatis indigotica. Method: Methylation sensitive amplification polymorphism (MSAP) approach and 36 pairs of selective primers combinations were used in this study. Result: A total of 1 612 bands were obtained.In all, 82(5.1%) CCGG sites displayed cytosine methylation changes after exposure to elevated temperature.Among these sites, 58(3.6%) CCGG sites had undergone hypermethylation changes and 24(1.5%) CCGG sites undergone demethylation changes. Conclusion: This result provided evidence for genome-wide DNA methylation remodeling occurring immediately after exposure to elevated temperature in I.indigotica.
出处
《中国实验方剂学杂志》
CAS
北大核心
2013年第6期113-116,共4页
Chinese Journal of Experimental Traditional Medical Formulae
基金
教育部高等学校博士学科点专项科研基金课题(20114220120003
20114220120005)
湖北省自然科学基金(2012FFB00104)
湖北省教育厅科研项目(Q20111307)
关键词
菘蓝
DNA甲基化
高温
甲基化敏感扩增多态性
Isatis indigotica
DNA methylation
high temperature
methylation sensitive amplification polymorphism(MSAP)