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    • 4. 发明公开
    • EXCISION OF TRANSGENES IN GENETICALLY MODIFIED ORGANISMS
    • 遗传转化生物体系中的维生素转运蛋白(EXZISION VON TRANSGENEN IN GENETISCH MODIFIZITENTEN ORGANISMEN)
    • EP2525649A4
    • 2013-07-31
    • EP11735267
    • 2011-01-21
    • DOW AGROSCIENCES LLC
    • RUSSELL SEANPETOLINO JOSEPH F
    • A01H5/00C12N9/22C12N15/29C12N15/82
    • C12N15/8213A01H1/02C12N9/22C12N15/8241C12N15/8265
    • A method for deleting a region of DNA in a plant. In some embodiments, the method comprises transforming a plant with a nucleic acid molecule, wherein the nucleic acid molecule encodes one or more zinc finger nuclease(s) (ZFNs) operably linked to one or more tissue-specific promoter(s), e.g., a pollen-specific promoter. Methods include excising native genes in a plant. Accordingly, in some embodiments, ZFNs are engineered that recognize sequences that flank native plant genes. In further embodiments, ZFNs are expressed under the control of developmental stage-specific promoters, such that, for example, nucleic acid sequences are specifically excised in plants during relatively late stages of development. Nucleic acid molecules useful for carrying out disclosed methods and plants produced by the methods are included.
    • 一种删除植物中DNA区域的方法。 在一些实施方案中,所述方法包括用核酸分子转化植物,其中所述核酸分子编码与一种或多种组织特异性启动子可操作地连接的一个或多个锌指核酸酶(ZFN),例如, 花粉特异性启动子。 方法包括在植物中切除天然基因。 因此,在一些实施方案中,ZFN被工程化以识别与天然植物基因相邻的序列。 在进一步的实施方案中,ZFN在发育阶段特异性启动子的控制下表达,使得例如在相对较晚的发育阶段在植物中特异性切除核酸序列。 包括用于实施所公开的方法的核酸分子和通过该方法生产的植物。