Nucleotide sequences mediating plant male fertility and method of using same
US7759543B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2009 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Sep 22, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/8287
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.