文献类型: 外文期刊
作者: Cao, MX 1 ; Huang, JQ 2 ; Wei, ZM 2 ; Yao, QH 3 ; Wan, CZ; Lu, JA;
作者机构: 1.Chinese Acad Sci, Shanghai Inst Biol Sci, State Key Lab Plant Mol Genet, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Biol Sci, State Key Lab Plant Mol Genet, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China; Shanghai Acad Agr Sci, Agrobiotech Res Ctr, Shanghai 201106, Peoples R China; Shanghai Acad Agr Sci, Crop Breeding & Cultivat Res Inst, Shanghai 201106, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Biol Sci, State Key Lab Plant Mol Genet, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China; Shanghai Acad Agr Sci, Agrobiotech Res Ctr, Shanghai 201106, Peoples R China; Shanghai Acad Agr Sci, Crop Breeding & Cultivat Res Inst, Shanghai 201
关键词: Agrobacterium tumefaciens;linked expression cassettes;multiple genes;rice;transformation
期刊名称:JOURNAL OF INTEGRATIVE PLANT BIOLOGY ( 影响因子:7.061; 五年影响因子:6.002 )
ISSN: 1672-9072
年卷期: 2005 年 47 卷 2 期
页码:
收录情况: SCI
摘要: The homodimeric hemoglobin gene (VHb), the trans-zeatin synthetase gene (tzs), the modified 5-enolpyruvylshikimate-3-phosphate synthase gene (EPSPS), a selectable marker gene (hpt), and a reporter gene (gus), as linked expression cassettes, were stacked into the T-DNA region of a binary vector and introduced simultaneously into immature embryos of the rice (Oryza sativa L.) varieties Xiushui-11, Qiufeng, Youfeng, and Hanfeng by Agrobacterium tumefaciens. A total of 1 153 transgenic lines was obtained through selection for hygromycin B resistance. Approximately 90.2% of the transgenic lines harbored all the transgenes. Integration of multiple transgenes occurred at one to three genetic loci. Expression analysis revealed that the transgenes were coexpressed and inherited in a simple Mendelian fashion in transgenic plants and the frequency of coexpression was approximately 85%. On the basis of the cointegration and coexpression of the transgenes, most transgenic families were considered to be useful in a breeding program.
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