Construction of efficient gene silencing vector harboring lycopene β-Cyclase gene

番茄茄红素是番茄果实中含量最多的一种类胡萝卜素,也是植物类胡萝卜素代谢过程中的一个重要中间产物。它的环化是在茄红素β-环化酶(Lyc-b)和茄红素ε-环化酶(Lyc-e)催化下完成的,其中茄红素β-环化酶在番茄茄红素转变为β-胡萝卜素的过程中起主要作用。我们利用RT-PCR方法从番茄叶片中克隆出Lyc-b基因,将PCR产物与pGEM-T载体连接后进行测序,扩增的DNA序列与发表的茄红素β-环化酶序列一致。以此为模板,克隆了400bp左右的目的片段,利用Gateway系统构建Lyc-b基因目的片段的pJawoh18-2b ihpRNA表达载体。经PCR与酶切鉴定的阳性克隆转化农杆菌LBA1100...

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Published inMolecular plant breeding Vol. 5; no. 1
Main Author Yang Meiying, He Hongxia, Wang Yan
Format Journal Article
LanguageChinese
Published 01.01.2007
Subjects
EXPRESION GENICA
EXPRESSION DES GENES
GENE EXPRESSION
http://www.fao.org/aos/agrovoc#c_27527
http://www.fao.org/aos/agrovoc#c_28451
http://www.fao.org/aos/agrovoc#c_7805
LICOPENO
LYCOPENE
TOMATE
TOMATOES
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Abstract 番茄茄红素是番茄果实中含量最多的一种类胡萝卜素,也是植物类胡萝卜素代谢过程中的一个重要中间产物。它的环化是在茄红素β-环化酶(Lyc-b)和茄红素ε-环化酶(Lyc-e)催化下完成的,其中茄红素β-环化酶在番茄茄红素转变为β-胡萝卜素的过程中起主要作用。我们利用RT-PCR方法从番茄叶片中克隆出Lyc-b基因,将PCR产物与pGEM-T载体连接后进行测序,扩增的DNA序列与发表的茄红素β-环化酶序列一致。以此为模板,克隆了400bp左右的目的片段,利用Gateway系统构建Lyc-b基因目的片段的pJawoh18-2b ihpRNA表达载体。经PCR与酶切鉴定的阳性克隆转化农杆菌LBA1100,利用农杆菌叶盘法转化番茄获得了抗性愈伤及再生苗,以检测ihpRNA沉默载体能否降低茄红素β-环化酶基因表达,并为进一步了解该基因在番茄类胡萝卜素代谢过程中的作用奠定基础。这些数据未在本文列出。
AbstractList 番茄茄红素是番茄果实中含量最多的一种类胡萝卜素,也是植物类胡萝卜素代谢过程中的一个重要中间产物。它的环化是在茄红素β-环化酶(Lyc-b)和茄红素ε-环化酶(Lyc-e)催化下完成的,其中茄红素β-环化酶在番茄茄红素转变为β-胡萝卜素的过程中起主要作用。我们利用RT-PCR方法从番茄叶片中克隆出Lyc-b基因,将PCR产物与pGEM-T载体连接后进行测序,扩增的DNA序列与发表的茄红素β-环化酶序列一致。以此为模板,克隆了400bp左右的目的片段,利用Gateway系统构建Lyc-b基因目的片段的pJawoh18-2b ihpRNA表达载体。经PCR与酶切鉴定的阳性克隆转化农杆菌LBA1100,利用农杆菌叶盘法转化番茄获得了抗性愈伤及再生苗,以检测ihpRNA沉默载体能否降低茄红素β-环化酶基因表达,并为进一步了解该基因在番茄类胡萝卜素代谢过程中的作用奠定基础。这些数据未在本文列出。
Author Yang Meiying, He Hongxia, Wang Yan
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EXPRESSION DES GENES
GENE EXPRESSION
http://www.fao.org/aos/agrovoc#c_27527
http://www.fao.org/aos/agrovoc#c_28451
http://www.fao.org/aos/agrovoc#c_7805
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TOMATE
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Title Construction of efficient gene silencing vector harboring lycopene β-Cyclase gene
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