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    • 4. 发明申请
    • METHOD OF PLANT TRANSFORMATION
    • 植物转化方法
    • WO0018939A9
    • 2000-09-14
    • PCT/US9922379
    • 1999-09-28
    • PIONEER HI BRED INTBIDNEY DENNIS LSCELONGE CHRISTOPHER JAY
    • BIDNEY DENNIS LSCELONGE CHRISTOPHER JAY
    • C12N15/82C12N15/84
    • C12N15/8241C12N15/8205C12N15/8209
    • Compositions and methods for the efficient co-transformation of a plant are provided. Novel compositions are Agrobacterium strains that have been engineered to comprise at least two binary vector plasmids in addition to a helper plasmid comprising the vir functions. Each of the binary vectors comprises its own T-DNA borders flanking a heterologous nucleotide sequence of interest. Methods of the invention comprise the use of these novel multiple-binary vector Agrobacterium strains to co-transform a plant. In this manner, heterologous nucleotide sequences of interest residing on different binary vectors can be independently introduced into the plant in a single transformation event and incorporated in the plant's nuclear DNA in an unlinked manner. The invention also provides for regenerated, fertile transgenic plants, transgenic seeds produced therefrom, and T1 and subsequent generations.
    • 提供了植物有效共同转化的组合物和方法。 除了包含vir功能的辅助质粒之外,新型组合物是经过工程改造以包含至少两种二元载体质粒的农杆菌菌株。 每个二元载体包含在感兴趣的异源核苷酸序列侧翼的其自身的T-DNA边界。 本发明的方法包括使用这些新型多元二元载体农杆菌菌株共同转化植物。 以这种方式,驻留在不同二元载体上的感兴趣的异源核苷酸序列可以在单个转化事件中独立地引入植物中,并以非连接的方式并入植物的核DNA中。 本发明还提供了再生的,可育的转基因植物,由其产生的转基因种子,以及T1和随后的几代。