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HvABA8′OH-1基因RNAi载体的构建及遗传转化
Authors
付体华
刘燕
+4 more
郑寒
陈烨
陈静
马建华
Publication date
1 January 2010
Publisher
Abstract
穗发芽严重影响作物的产量和品质,种子休眠性弱是穗发芽形成的主要原因之一.ABA是维持胚休眠抑制萌发的重要激素,大麦HvABA8′OH-1基因编码控制内源ABA主要分解代谢途径的关键酶.以双元载体pGreenⅡ为骨架载体,分别选取HvABA8′OH-1的保守区序列(293bp)和特异区序列(474bp),水稻胚乳特异性启动子pGlub,成功构建了种子特异性RNA干扰表达载体pOHC和pOHS.利用农杆菌介导法将载体转入水稻,获得植株50株.经鉴定,其中18株为转基因阳性植株.研究结果为进一步分析HvABA8′OH-1基因的生物学功能,以及通过基因工程途径建立作物抗穗发芽育种新方法提供了理论依据和材料
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Last time updated on 29/11/2016