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玉米C_4型PEPC全长基因的克隆与表达载体构建 被引量:2

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摘要 以玉米自交系郑58基因组DNA为模板,设计了2对特异性引物,分别PCR扩增玉米C4型磷酸烯醇式丙酮酸羧化酶(PEPC)启动子及其全长编码序列,利用In-Fusion技术将两者定向克隆到载体p CAMBIA-1391Z上,并对重组子进行测序验证。结果表明,该PEPC启动子序列与Gen Bank中的玉米自交系B73的同源性为97.70%,片段长1 200 bp;全长编码序列同源性为97.90%,片段长6 330 bp。通过HindⅢ和EcoRⅠ酶切载体p CAMBIA-1391Z,利用In-Fusion技术将线性载体与之前获得的2个PCR片段连接,测序结果与预期序列一致,表明成功构建了p CAMBIA-1391Z-PEPC植物表达载体。对克隆和载体构建中存在的问题进行了讨论,以期为该类型基因的高效克隆及表达载体的构建提供参考、为C4型PEPC基因功能研究和C3植物遗传转化提供可用的基因序列。
出处 《江苏农业科学》 北大核心 2014年第11期26-29,共4页 Jiangsu Agricultural Sciences
基金 国家自然科学基金(编号:31000673) 教育部博士点基金(编号:20102103110001 20102103120001) 辽宁省科技厅科技攻关项目(编号:201201238)
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