烟草NtNAC-R1基因内含子鉴定与瞬时表达分析
Journal of Henan Agricultural Sciences(2013)
Abstract
克隆烟草NtNAC-R1基因,并进行瞬时表达分析,探讨其是否含有内含子及其在烟碱生物合成中的调控作用.以烟草基因组DNA为模板克隆得到NAC转录因子NtNAC-R1,鉴定结果表明,该基因含有2个内含子.通过构建真核表达载体,建立瞬时表达分析体系,RT-PCR检测结果显示NtNAC-R1基因过表达,烟碱生物合成关键基因PMT表达量升高,JA信号途径标记基因PDF1.2和IAA响应基因IAA13表达量降低.瞬时表达分析表明,该基因受JA信号和IAA信号途径的交互对话影响,进而调控烟碱的生物合成.
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Key words
NtNAC-R1 gene,introns,signal pathway,transient expression analysis,Nicotiana tabacum L.
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