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Cloning and Expression of ERF-B3 Subgroup Transcription Factor Related to Resistant Fusarium oxysporum f.sp.vasinfectum in Cotton
Author(s): HE Lanlan, CHAI Mengliang, HAN Zegang, ZHAO Zengqiang, ZHANG Wei
Pages: 2375-
2381
Year: 2013
Issue:
12
Journal: Acta Botanica Boreali-Occidentalia Sinica
Keyword: cotton; ERF-B3 transcription factors; Fusarium oxysporum f.sp.vasinfectum; gene clone; expression analysis;
Abstract: 以拟南芥ERF-B3亚组转录因子的AP2/ERF结构域为探针,利用NCBI中的棉花(Gossypium hirsutum)EST数据库,通过电子克隆结合RT PCR方法,从枯萎病菌诱导后的高抗枯萎病品种‘中棉所12,克隆到1个与抗枯萎病相关的ERF-B3亚组转录因子基因GhB301.序列分析结果显示,GhB301基因cDNA全长593 bp,开放阅读框384 bp,编码127个氨基酸,含有一个保守的AP2/ERF结构域.实时荧光定量PCR检测该基因的表达显示,枯萎病菌诱导后,GhB301基因在棉花根中、抗病品种中优势表达;在乙烯、水杨酸、干旱、低温及高盐的诱导下表达量均发生变化.研究结果表明,GhB301基因可能参与了棉花对病原菌、激素及非生物胁迫的应答反应.
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