文献类型： 外文期刊

作者： Wei, Jizhen ¹ ; Zhang, Yaling ¹ ; An, Shiheng ¹ ;

作者机构： 1.Henan Agr Univ, Coll Plant Protect, State Key Lab Wheat & Maize Crop Sci, Zhengzhou 450002, Henan, Peoples R China

2.Tibet Acad Agr & Anim Husb Sci, Lhasa, Peoples R China

关键词： Bacillus thuringiensis; cross-resistance; pyramided Bt crops; resistance mechanism

期刊名称：ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：1.698； 五年影响因子：1.758 ）

ISSN： 0739-4462

年卷期： 2019 年 102 卷 3 期

页码：

收录情况： SCI

摘要： Bt crop pyramids produce two or more Bt proteins active to broaden the spectrum of action and to delay the development of resistance in exposed insect populations. The cross-resistance between Bt toxins is a vital restriction factor for Bt crop pyramids, which may reduce the effect of pyramid strategy. In this review, the status of the cross-resistance among more than 20 Bt toxins that are most commonly used against 13 insect pests was analyzed. The potential mechanisms of cross-resistance are discussed. The corresponding measures, including pyramid RNA interference and Bt toxin, "high dose/refuge," and so on are advised to be taken for adopting the pyramided strategy to delay the Bt evolution of resistance and control the target pest insect.