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  5. Frequency of Bt Resistance Alleles by F2 Screen in Helicoverpa armigera (Hübner) (Lepidoptera:Noctui

Frequency of Bt Resistance Alleles by F2 Screen in Helicoverpa armigera (Hübner) (Lepidoptera:Noctui

来源 :The 10th Conference of Insect Physiology, Biochemistry and M | 被引量 : 0次 | 上传用户：nisshei5zd
【摘 要】
：
Evolution of resistance by Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) can reduce the efficacy of transgenic cotton producing Bacillus thuringiensis (Bt) toxin.The frequency of CrylAc resis
【作 者】
：
JINGJIE AN YULIN GAO CHAOLIANG LEI FRED GOULD KONGMING WU 
【出 处】
：
The 10th Conference of Insect Physiology, Biochemistry and M
【发表日期】
：
2013年4期
【关键词】
：
Cry1Ac Helicoverpa armigera Bt cotton resistance frequency 
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Evolution of resistance by Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) can reduce the efficacy of transgenic cotton producing Bacillus thuringiensis (Bt) toxin.The frequency of CrylAc resistance alleles and quantitative shifts in susceptibility of field H.armigera to Cry1Ac had been monitored by screening F1 and F2 isofemale offspring since 2002 in Xiajin County of Shandong Province (an intensive Bt cotton planting area) and Anci County of Hebei Province (a multiple-crop system including corn, soybean, peanut, and Bt cotton).
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