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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >One gene in diamondback moth confers resistance to four Bacillus thuringiensis toxins
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One gene in diamondback moth confers resistance to four Bacillus thuringiensis toxins

机译:小菜蛾中的一个基因赋予对苏云金芽孢杆菌四种毒素的抗性

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摘要

Environmentally benign insecticides derived from the soil bacterium Bacillus thuringiensis (Bt) are the most widely used biopesticides, but their success will be short-lived if pests quickly adapt to them. The risk of evolution of resistance by pests has increased, because transgenic crops producing insecticidal proteins from Bt are being grown commercially. Efforts to delay resistance with two or more Bt toxins assume that independent mutations are required to counter each toxin. Moreover, it generally is assumed that resistance alleles are rare in susceptible populations.
机译:来自土壤细菌苏云金芽孢杆菌(Bt)的对环境无害的杀虫剂是使用最广泛的生物农药,但如果害虫迅速适应它们,其成功将是短暂的。害虫产生抗药性的风险增加了,因为从Bt生产杀虫蛋白的转基因作物正在商业化种植。尝试延迟两种或两种以上Bt毒素的抵抗力,认为需要独立的突变来对抗每种毒素。而且,通常假定抗性等位基因在易感人群中很少。

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