摘要:
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 suppression, mutagenesis and/or editing of specific subtypes of GA20 or GA3 oxidase genes. Modified plant cells and plants having a suppression element or mutation reducing the expression or activity of a GA oxidase gene are further provided comprising reduced gibberellin levels and improved characteristics, such as reduced plant height and increased lodging resistance, but without off-types.
摘要:
The present invention provides recombinant DNA constructs, vectors and molecules useful for attenuating and/or refining the expression of a florigenic FT gene or transgene using targeting sequences of small RNA molecules. Transgenic plants, plant cells and tissues, and plant parts comprising the recombinant constructs, vectors, and molecules are also provided. Transgenic plants comprising a florigenic FT transgene may produce more bolls, siliques, fruits, nuts, or pods per node on the transgenic plant via suppression, relative to a control or wild type plant. Methods are further provided for introducing the recombinant DNA constructs, vectors, and molecules into a plant, and planting transgenic plants in the field including at higher densities. Transgenic plants of the present invention may provide greater yield potential than wild type or control plants.