| 摘要 |
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. |
| 主权项 |
1. 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. |
