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    • 8. 发明申请
    • METHOD OF REDUCING INSECT RESISTANT PESTS IN TRANSGENIC CROPS
    • 减少转基因抗虫药物的方法
    • US20090041869A1
    • 2009-02-12
    • US12251578
    • 2008-10-15
    • DANIEL J. COSGROVE
    • DANIEL J. COSGROVE
    • A01N65/00A01N37/08A01N43/40A01N33/26A01N43/647A01N57/12A01N43/36A01N43/56A01N37/44A61K38/16A01N43/04A61P7/00
    • C12N15/8286A01N25/00Y02A40/162
    • The present invention discloses Resistance Management (RM) practices that are critical to safeguard Bacillus thuringiensis as a natural resource and sustain genetically modified corn expressing Bt toxins as a suitable method for ECB and WCRW management. A useful tool in developing RM strategies is to develop laboratory selected colonies that exhibit high levels of resistance to a particular toxin. The availability of selected strains allows determination of the genetic expression of resistance (i.e., dominant vs. recessive, autosomal vs. sex-linked) and whether or not the resistance mechanism is specific for a given toxin. In addition, the availability of resistant strains will allow estimation of the particular resistance allele frequency in the field, and provides a tool to identify the biochemical and physiological basis of resistance and a means to develop molecular probes to monitor the evolution of resistance in the field.
    • 本发明公开了对保护苏云金芽孢杆菌作为天然资源和维持转基因玉米表达Bt毒素作为ECB和WCRW管理的合适方法至关重要的实践。 开发RM策略的有用工具是开发对特定毒素具有高水平抗性的实验室选择的菌落。 所选择的菌株的可用性允许测定抗性的遗传表达(即显性与隐性,常染色体与性别相关的)以及抗性机制是否对给定毒素是特异性的。 此外,抗性菌株的可用性将允许估计现场的特定抗性等位基因频率,并且提供了鉴定抗性的生物化学和生理学基础的工具,以及开发分子探针以监测野外抗性进化的手段 。