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Self-Reproducing Hybrid Plants
专利权人:
SHAI J. LAWIT
发明人:
SHAI J. LAWIT
申请号:
US13445419
公开号:
US20120266324A1
申请日:
2012.04.12
申请国别(地区):
US
年份:
2012
代理人:
摘要:
Compositions and methods for the production of self-reproducing hybrid plants are provided. Compositions include suppression cassettes encoding polynucleotides and promoters that result in the MiMe diploid gamete phenotype compositions and suppression cassettes and expression cassettes useful for genome elimination of a parental diploid gamete in a fertilized zygote. The methods involve crossing a first plant comprising a first suppression cassette responsible for producing the MiMe diploid gamete phenotype and a first expression cassette expressing an active CENH3 mutant with a second plant comprising a second suppression cassette that reduces the level of wild-type CENH3 and a second expression cassette comprising a polynucleotide expressing CENH3 specifically in the ovule. Self fertilization of the resultant progeny plant results in the elimination of the female diploid genome in the zygote and normal development of the endosperm. Additionally provided are plants and seeds produced by the methods of the invention.
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