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Use of phytoene synthase for controlling transgene escape
Use of phytoene synthase for controlling transgene escape
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机译:八氢番茄红素合酶用于控制转基因逃逸的用途
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摘要
The present invention is related to a recoverable block of function (RBF) system for controlling transgene escape and transgene containment in plants. The RBF-system comprises at least one blocking construct (BC), wherein the BC comprises as the blocking gene a nucleotide sequence or crtB gene encoding phytoene synthase, which is used alone or in combination with other BCs. The crtB gene expresses under the control of a germination specific promoter or a promoter constitutively repressed by a Recovering construct (RC) and blocks the germination of a transgenic seed. The blocked germination is recoverable by a user controlled intervention including addition of an effective amount of gibberellin and sugar and may involve so called recovering constructs (RCs), wherein the recovering gene may encode ent-copalyl diphosphate synthase or ent-kaurene synthase.
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