发明名称 |
IMPROVED PLANT GERMPLASM |
摘要 |
A recombinant plant genome contains a gene cascade such that it is incapable of producing a mature plant but requires the presence of a chemical inducer. The gene cascade includes a gene switch which is inducible by external application of a chemical inducer and which controls expression of a gene product which affects expression of a second gene in the genome. Survival or development of the plant is dependant upon either expression or non-expression of the second gene and application of the inducer, therefore, selects whether or not the plant develops. In one example the second gene encodes a cytotoxic molecule and expression of that gene is fatal to the plant. In another example the second gene encodes a desirable characteristic which may be excised selectively by applying or withholding chemical application. The second gene may be placed under control of a development regulated promoter.
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申请公布号 |
CA2140267(A1) |
申请公布日期 |
1994.02.17 |
申请号 |
CA19932140267 |
申请日期 |
1993.07.29 |
申请人 |
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发明人 |
BRIGHT, SIMON W. J.;GREENLAND, ANDREW J.;JEPSON, IAN;PAINE, JACQUELINE A. M. |
分类号 |
C12N9/88;C12N15/29;C12N15/31;C12N15/55;C12N15/56;C12N15/60;C12N15/82;(IPC1-7):C12N15/82;A01H5/00;C12N5/10;C12N15/54 |
主分类号 |
C12N9/88 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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