当前位置: 首页 > 文章 > 通过根癌农杆菌介导法获得新疆甜瓜抗病优质新品系 西北农业学报 1999,8 (1) 3-6
Position: Home > Articles > A High Quality and Disease-resistant New Line of Xinjiang Melon Obtained by Agrobacterium Tumefacien-mediated Transformation Acta Agriculturae Boreali-occidentalis Sinica 1999,8 (1) 3-6

通过根癌农杆菌介导法获得新疆甜瓜抗病优质新品系

作  者:
李仁敬;孙严;许健;伊鸿平;孟庆玉;翟文强;冯炯鑫;危晓薇;吴明珠;喻梅辉;陈章良
单  位:
新疆农科院园艺作物研究所;新疆农科院核技术生物技术研究所;新疆农业大学生物基础部;乌鲁木齐
关键词:
新疆甜瓜;黄瓜花叶病毒外壳蛋白cDNA基因;转基因植株;根癌农杆菌介导法;抗病优质甜瓜新品系
摘  要:
用新疆甜瓜无菌苗子叶块,通过根癌农杆菌介导法,将黄瓜花叶病毒外壳蛋白cDNA基因导入“新红心脆”等6个品种(系),经卡那霉素(Kanamycin,Km)筛选.获得大量Km抗性植株,其中部分Km抗性植株经Luis法检测,表达了胭脂碱合成酶活性。进一步经SDS-PAGE,DOT-Elisa,PCR特异扩增,Western-Blot等方法检测,结呆证明了Km抗性植株基因组中整合了CMV—CP基因,长度为1kb,并能有效表达.表达产物分子量为24kD,确为CMV的外壳蛋白,其表达量占细胞总蛋白的5%。Km抗性植株经常规育种选育9代,获得了稳定过传的抗病、优质甜瓜品系K3-19。
译  名:
A High Quality and Disease-resistant New Line of Xinjiang Melon Obtained by Agrobacterium Tumefacien-mediated Transformation
作  者:
Li Renjing; Sun Yan; Xu Jian; Yi Hongping; Meng Qingyu; Zhai Wenqiang; Feng Jiongxin;Wei Xiaowei; Wu Mingzhu; Yu Melhui; Pan Naisui; and Chen Zhangliang(Institute of Nuclear &. Biological Technologies. XAAS, Key Laboratory of North-West Crop Cell Engineer
关键词:
Xinjiang melon;Cucumber Mosaic Virus coat protein gene;Transgenic plant;Agrobacterium tumefacien-mdiated transformation; New melon line of high quality and disease resistance
摘  要:
he cotyloden strips of six Xinjiang melon varieties (lines)" Xin Hongxincui" etc. were transformed with Cucumber Mosaic Virus Coat Protein (CMV - CP) gene by A. tumefacien-mediated method, and large amo unt of anti-kanamycin (kan) plant were obtainted. After test by Luis method,some anti-kan plants showed the activity of nopalin synthase. Further tests, such as: PCR, dot blot,western blot, etc,indicated that the CMV-CP gene had integrated in the genomic DNA of the anti-kan plants, and the expression of this 1 kb gene in plant produced a protein of 24 kDa, an expected size for CMV-CP. The expression amount was about 5% of total plant protein. After traditional breeding of 9generations, the new melon line K3 - 19 of high quality and disease-resistance of stable heridity was obtained from these anti-kan plants.

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