Use of HUB1 polynucleotides for improving growth characteristics in plants

摘要

The present invention relates generally to the field of molecular biology and concerns a method for improving various economically important growth characteristics in plants. More specifically, the present invention concerns inter alia a method for modifying growth characteristics in plants by modulating expression in a plant of a nucleic acid encoding a HUB1 (Histone Monoubiquitination 1) polypeptide or encoding another protein useful in the methods of the present invention. The modified growth characteristics comprise a modification of light regulated phenotypes, such as modified circadian clock and/or circadian clock responses, or modified plant architecture.

主权项

1. A method for increasing seed yield in a plant relative to a control plant, comprising increasing expression in a plant of a nucleic acid encoding a polypeptide comprising a RING domain of a C3HC4 type and having at least 95% sequence identity to the amino acid sequence SEQ ID NO: 2, and selecting for a plant having increased seed yield relative to a control plant, said nucleic acid is operably linked to a High Mobility Group Protein (HMGP) promoter, and wherein said increased seed yield comprises increased total weight of seeds, increased number of filled seeds, and/or increased total number of seeds relative to a control plant.