PLANTS HAVING ENHANCED YIELD-RELATED TRAITS AND A METHOD FOR MAKING THE SAME

摘要

The present invention relates generally to the field of molecular biology and concerns a method for enhancing various yield-related traits in plants by modulating expression in a plant of a nucleic acid encoding a TCP1 or a TCP2 transcription factor. The present invention also concerns plants having modulated expression of a nucleic acid encoding a TCP1 or TCP2 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 enhancing various economically important yield-related traits in plants. More specifically, the present invention concerns a method for enhancing yield-related traits in plants by modulating expression in a plant of a nucleic acid encoding an Epsin-like polypeptide. The present invention also concerns plants having modulated expression of a nucleic acid encoding an Epsin-like polypeptide, which plants have enhanced yield-related traits relative to control plants. The invention also provides constructs comprising a nucleic acid encoding an Epsin-like polypeptide, useful in performing 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 increasing various plant yield-related traits by increasing expression in the seeds of a plant, of a nucleic acid sequence encoding a tRNA delta(2)- isopentenylpyrophosphate transferase (IPPT) polypeptide. The present invention also concerns plants having increased expression in the seeds, of a nucleic acid sequence encoding an IPPT polypeptide, which plants have increased yield-related traits relative to control plants. The invention additionally relates to nucleic acid constructs, vectors and plants containing said nucleic acid sequences. In further embodiment, the present invention relates generally to the field of molecular biology and concerns a method for enhancing yield-related traits in plants grown under conditions of sub-optimal nutrient availability, comprising modulating expression in a plant of a nucleic acid encoding a SHORT-ROOT (SHR) polypeptide. The present invention also provides a method for increasing Thousand Kernel Weight (TKW) in plants relative to control plants, comprising modulating expression of a nucleic acid encoding an SHR polypeptide in a plant grown under grown under non-nutrient limiting conditions. The present invention also concerns plants having modulated expression of a nucleic acid encoding an SHR 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.