巴西橡胶树NAC转录因子HbNAC1基因的克隆及生物信息学分析

被引:12
作者
康桂娟
曾日中
聂智毅
黎瑜
代龙军
段翠芳
机构
[1] 中国热带农业科学院橡胶研究所/农业部橡胶树生物学与遗传资源利用重点实验室/省部共建国家重点实验室培育基地—海南省热带作物栽培生理学重点实验室
关键词
巴西橡胶树; NAC转录因子; 克隆; 生物信息学分析;
D O I
暂无
中图分类号
S794.1 [橡胶树];
学科分类号
090702 [森林培育];
摘要
为了研究植物特有的NAC(NAM,ATAF1/2和CUC2)转录因子在巴西橡胶树生长发育、胁迫应答和激素调节中的功能,对巴西橡胶树NAC转录因子进行了克隆和分析。根据橡胶树胶乳cDNA文库中筛选到的NACEST序列,利用RACE-PCR技术克隆了橡胶树HbNAC1的cDNA序列。生物信息学分析显示HbNAC1基因开放阅读框(ORF)为891bp,编码了一个296个氨基酸组成的中性不稳定水溶性蛋白,该蛋白的N-端具有保守的NAC结构域,C-端高度变异,具备了NAC转录因子的基本特征。HbNAC1定位在细胞核中,具有3个糖基化位点和21个磷酸化位点,三级结构由3个α-螺旋和9个β-折叠组成。序列比对和系统进化分析显示HbNAC1蛋白属于NAC转录因子家族中的ANAC011亚族,推测其可能作为一种氨基酸合成相关的调节酶参与调控植物的免疫反应。
引用
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页码:1 / 11
页数:11
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