Method for increasing plant yield by expressing a nucleic acid encoding an ornithine decarboxylase polypeptide and plants expressing the same

摘要

Plants having enhanced yield-related traits and a method for making the same The present invention relates generally to the field of molecular biology and concerns a method for enhancing various yield-related traits by modulating expression in a plant of a nucleic acid encoding an Ornithine Decarboxylase (ODC) polypeptide. The present invention also concerns plants having modulated expression of a nucleic acid encoding an ODC polypeptide, which plants have enhanced yield-related traits relative to corresponding wild type plants or other control plants. The invention also provides constructs useful in the methods of the invention. In another embodiment, the present invention relates generally to the field of molecular biology and concerns a method for increasing various plant yield-related traits, by increasing expression in a plant of a nucleic acid sequence encoding a benzothiadiazole-induced homeodomain λ_(BIHD1) polypeptide. The present invention also concerns plants having increased expression of a nucleic acid sequence encoding a BIHD1 polypeptide, which plants have increased yield-related traits relative to control plants. The invention also provides constructs useful in the methods of the invention. In yet another embodiment, the present invention relates generally to the field of molecular biology and concerns a method for enhancing various yield-related traits by modulating expression in a plant of a nucleic acid encoding a MYB30. The present invention also concerns plants having modulated expression of a nucleic acid encoding a MYB30 polypeptide, which plants have enhanced yield-related traits relative to corresponding wild type plants or other control plants. The invention also provides constructs useful in the methods of the invention. In yet another embodiment, the present invention relates generally to the field of molecular biology and concerns a method for improving various plant growth characteristics by modulating expression in a plant of a nucleic acid encoding a THOM (tomato homeobox) protein. The present invention also concerns plants having modulated expression of a nucleic acid encoding a THOM polypeptide, which plants have improved growth characteristics relative to corresponding wild type plants or other control plants. The invention also provides constructs useful in the methods of the invention. In a further embodiment, the present invention relates generally to the field of molecular biology and concerns a method for increasing various plant yield-related traits, by increasing expression in a plant of a nucleic acid sequence encoding a benzothiadiazole-induced Jiomeodomain 2 (BIHD2) polypeptide. The present invention also concerns plants having increased expression of a nucleic acid sequence encoding a BIHD2 polypeptide, which plants have increased yield-related traits relative to control plants. The invention also provides constructs useful in the methods of the invention.

主权项

1. A method for enhancing and/or increasing a yield-related trait in a cereal plant relative to a control plant, comprising: increasing expression in a cereal plant of a nucleic acid encoding an Ornithine Decarboxylase polypeptide having at least 90% sequence identity to the amino acid sequence of SEQ ID NO: 2, and selecting for a cereal plant having an enhanced yield-related trait selected from the group consisting of early vigor, aboveground biomass, number of filled seeds, total number of seeds, and total seed yield; relative to a control plant.