METHODS AND COMPOSITIONS FOR GENERATING DOMINANT SHORT STATURE ALLELES USING GENOME EDITING

    公开(公告)号:WO2020243363A1

    公开(公告)日:2020-12-03

    申请号:PCT/US2020/034996

    申请日:2020-05-28

    Abstract: The present disclosure provides compositions and methods for altering gibberellin (GA) content in corn or other cereal plants. Methods and compositions are also provided for altering the expression of genes related to gibberellin biosynthesis through editing of a specific GA20 oxidase gene or locus to produce a genomic deletion or disruption that brings an antisense sequence of the GA20 oxidase gene under the control of a neighboring SAMT gene promoter. Modified plant cells and plants having a dominant allele reducing the expression or activity of one or more GA oxidase genes are further provided comprising reduced gibberellin levels and improved characteristics, such as reduced plant height and increased lodging resistance, but without off-types.

    COMPOSITIONS AND METHODS FOR ALTERING FLOWERING AND PLANT ARCHITECTURE TO IMPROVE YIELD POTENTIAL
    5.
    发明申请
    COMPOSITIONS AND METHODS FOR ALTERING FLOWERING AND PLANT ARCHITECTURE TO IMPROVE YIELD POTENTIAL 审中-公开
    改变花期和植物结构以改善产量潜力的组合物和方法

    公开(公告)号:WO2016172051A3

    公开(公告)日:2016-10-27

    申请号:PCT/US2016/028130

    申请日:2016-04-18

    Abstract: The present invention provides recombinant DNA constructs, vectors and molecules comprising a polynucleotide sequence encoding a florigenic FT protein operably linked to a vegetative stage promoter, which may also be a meristem-preferred or meristem-specific promoter. Transgenic plants, plant cells and tissues, and plant parts are further provided comprising a polynucleotide sequence encoding a florigenic FT protein. Transgenic plants comprising a florigenic FT transgene may produce more bolls, siliques, fruits, nuts, or pods per node on the transgenic plant, particularly on the main stem of the plant, relative to a control or wild type plant. Methods are further provided for introducing a florigenic FT transgene into a plant, and planting transgenic FT plants in the field including at higher densities. Transgenic plants of the present invention may thus provide greater yield potential than wild type plants and may be planted at a higher density due to their altered plant architecture.

    Abstract translation: 本发明提供了重组DNA构建体,载体和分子,所述重组DNA构建体,载体和分子包含与营养阶段启动子可操作连接的编码成花FT蛋白的多核苷酸序列,所述营养阶段启动子也可以是分生组织优选的或分生组织特异性启动子。 还提供了包含编码成花FT蛋白的多核苷酸序列的转基因植物,植物细胞和组织以及植物部分。 相对于对照或野生型植物,包含成花FT转基因的转基因植物可在转基因植物上,特别是在植物的主茎上产生更多的铃铛,角果,果实,坚果或荚果。 进一步提供了用于将成花FT转基因引入植物中的方法,以及在包括更高密度的田间种植转基因FT植物。 因此,本发明的转基因植物可提供比野生型植物更高的产量潜力,并且由于其改变的植物结构可以以更高的密度种植。

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