Cross-Resistance Pattern and Genetic Studies in Spirotetramat-Resistant Citrus Red Mite, Panonychus citri (Acari: Tetranychidae)
文献类型： 外文期刊
作者： Hu, Jinfeng 1 ; Wang, Jun 1 ; Yu, Yun 2 ; Rao, Wenhua 1 ; Chen, Feng 1 ; Wang, Changfang 1 ; Fan, Guocheng 1 ;
作者机构： 1.Fujian Acad Agr Sci, Fujian Engn Res Ctr Green Pest Management, Inst Plant Protect, Key Lab Monitoring & Integrated Management Crop P, Fuzhou 350013, Peoples R China
2.Technol Ctr Fuzhou Customs Dist, Fuzhou 350001, Peoples R China
关键词： Panonychus citri; spirotetramat; resistance selection; cross-resistance; genetic analysis
期刊名称：AGRICULTURE-BASEL （ 影响因子：3.408； 五年影响因子：3.459 ）
ISSN：
年卷期： 2022 年 12 卷 5 期
页码：
收录情况： SCI
摘要： In the laboratory, an acaricide-susceptible strain of the citrus red mite, Panonychus citri (McGregor) (LS-FJ), was used to screen for resistance to spirotetramat. A spirotetramat-resistant strain (ST-NK) obtained after continuous selections through 15 selection cycles (45 generations) exhibited 1668.4-fold greater resistance when compared to the parent generation. Instability of the spirotetramat resistance in the mites was observed during 11 months under spirotetramat-free laboratory conditions. Cross-resistance to spirodiclofen and spiromesifen was detected both in eggs and larvae, but not to five other tested acaricides. Probit lines for F1 heterozygous progeny indicated that the resistance to spirotetramat in the mites was autosomal with neither sex linkage nor maternal effects. The degrees of dominance were 0.15 and 0.23 for the diploid F1 of LS-FJ female x ST-NK male and ST-NK female x LS-FJ male, and 0.07 and 0.13 for haploid F2 of LS-FJ female x ST-NK male and ST-NK female x LS-FJ male, respectively, which indicated that the resistance was incompletely dominant. The chi 2 analyses from the response of a backcross of crossed F1 progeny and ST-NK and F2 progeny showed that multiple genes are responsible for resistance to spirotetramat.
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