High level resistance to Turnip mosaic virus in Chinese cabbage (Brassica campestris ssp pekinensis (Lour) Olsson) transformed with the antisense NIb gene using marker-free Agrobacterium tumefaciens infiltration
文献类型: 外文期刊
作者: Yu Zhandong 1 ; Zhao Shuangyi 2 ; He Qiwei 3 ;
作者机构: 1.Shandong Univ, Coll Life Sci, Jinan 250100, Peoples R China
2.Shandong Acad Agr Sci, Inst Vegetable Crops, Jinan 250100, Peoples R China
3.Jilin Agr Univ, Coll Hort, Changchun 130118, Jilin, Peoples R China
关键词: TuMV;NIb gene;marker-free;injiltration gene-transformation system;Chinese cabbage;Agrobacterium tumefaciens;TRANSGENIC ARABIDOPSIS;PLANTS;EXPRESSION;THALIANA;RNA
期刊名称:PLANT SCIENCE ( 影响因子:4.729; 五年影响因子:5.132 )
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收录情况: SCI
摘要: A TuMV-Nlb gene fragment was amplified from the total RNA of Chinese cabbage leaves infected with TuMV-C-4 by RT-PCR. This fragment was cloned into the marker-free plant binary vector pROK (a derivative of pROK2) in the antisense orientation and transformed into Chinese cabbage [Brassica canipestris ssp. pekinensis (Lour) Olsson] by the Agrobacterium tutnefaciens strain LBA4404 using infiltration genetransformation system. Forty-three transgenic T-0 plants were obtained. PCR, ELISA and Southern blot analysis showed that the TuMV-Nlb gene had integrated into the genome of Chinese cabbage and the heredity of this gene in some lines followed the 3:1 ratio. Both TO and T, transgenic plants showed high levels of resistance to TuMV when artificially inoculated with TuMV. RT-PCR analysis of To transgenic Chinese cabbage revealed the integrated TuMV-Nlb gene can be expressed normally. The infiltration gene-transformation system had proved effective in transformation of Chinese cabbage. (c) 2007 Elsevier Ireland Ltd. All rights reserved.
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High level resistance to Turnip mosaic virus in Chinese cabbage (Brassica campestris ssp pekinensis (Lour) Olsson) transformed with the antisense NIb gene using marker-free Agrobacterium tumefaciens infiltration
作者:Yu Zhandong;Zhao Shuangyi;He Qiwei
关键词:TuMV; NIb gene; marker-free; injiltration gene-transformation system; Chinese cabbage; Agrobacterium tumefaciens



