Isopentenyl Transferase Sequences and Methods of Use
AssigneePioneer Hi-Bred International, Inc.
InventorNorbert Brugiere
Life of this patent
Estimating the term…
Abstract
Methods and compositions for modulating plant development are provided. Polynucleotide sequences and amino acid sequences encoding isopentenyl transferase (IPT) polypeptides are provided. The sequences can be used in a variety of methods including modulating root development, modulating floral development, modulating leaf and/or shoot development, modulating senescence, modulating seed size and/or weight, and modulating tolerance of plants to abiotic stress. Polynucleotides comprising an IPT promoter are also provided. The promoter can be used to regulate expression of a sequence of interest. Transformed plants, plant cell, tissues, and seed are also provided.
Claims16
An expression cassette comprising a polynucleotide comprising a nucleotide sequence of SEQ ID NO:
- 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20, 21, 22, 24, 26, 28, 40, 42, 74, 44, 45, 47, 48, 50, 51, 53, 70, 55, 56, 58, 73, 60, 72, 62, 69, 64, 65, or 71, wherein said polynucleotide encodes a functional isopentenyl transferase, and wherein said polynucleotide is operably linked to a heterologous promoter.
An expression cassette comprising a polynucleotide comprising a nucleotide sequence operably linked to a heterologous promoter, wherein the nucleotide sequence is selected from the group consisting of:
- (a) a nucleotide sequence encoding an amino acid sequence comprising SEQ ID NO:
- 6, 9, 12, 15, 18, 23, 27, 41, 43, 46, 49, 52, 54, 57, 59, 61, 63, or 66;
- and
- (b) a nucleotide sequence comprising at least 95% sequence identity to SEQ ID NO:
- 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20, 21, 22, 24, 26, 28, 40, 42, 74, 44, 45, 47, 48, 50, 51, 53, 70, 55, 56, 58, 73, 60, 72, 62, 69, 64, 65, or 71, wherein said polynucleotide encodes a polypeptide having cytokinin synthesis activity.
A DNA construct comprising a promoter operably linked to a nucleotide sequence of interest, wherein said promoter comprises a polynucleotide comprising a nucleotide sequence of SEQ ID NO:
- 25 or 75 or a functional fragment or variant thereof.
Dependencies are inferred from the claim text.