A high-throughput KASP assay provides insights into the evolution of multiple resistant mutations in populations of the two-spotted spider mite Tetranychus urticae across China
文献类型: 外文期刊
作者: Shen, Xiu-Jing 2 ; Zhang, Yu-Jie 2 ; Wang, Shuai-Yu 4 ; Chen, Jin-Cui 2 ; Cao, Li-Jun 2 ; Gong, Ya-Jun 2 ; Pang, Bin-Shuang 2 ; Hoffmann, Ary Anthony 5 ; Wei, Shu-Jun 1 ;
作者机构: 1.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, 9 Shuguanghuayuan Middle Rd, Beijing 100097, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Inst Hybrid Wheat, Beijing, Peoples R China
4.Beijing Plant Protect Stn, Beijing, Peoples R China
5.Univ Melbourne, Bio21 Inst, Sch Biosci, Parkville, Vic, Australia
关键词: Tetranychus urticae; molecular diagnostics; target-site mutation; multiple resistance; pesticide
期刊名称:PEST MANAGEMENT SCIENCE ( 影响因子:4.1; 五年影响因子:4.4 )
ISSN: 1526-498X
年卷期: 2023 年 79 卷 5 期
页码:
收录情况: SCI
摘要: BackgroundThe two-spotted spider mite (TSSM), Tetranychus urticae (Acari: Tetranychidae), is a cosmopolitan phytophagous pest in agriculture and horticulture. It has developed resistance to many acaricides by target-site mutations. Understanding the status and evolution of resistant mutations in the field is essential for resistance management. Here, we applied a high-throughput Kompetitive allele-specific polymerase chain reaction (KASP) method for detecting six mutations conferring resistance to four acaricides of the TSSM. We genotyped 3274 female adults of TSSM from 43 populations collected across China in 2017, 2020, and 2021. ResultsThe KASP genotyping of 24 testing individuals showed 99% agreement with Sanger sequencing results. KASP assays showed that most populations had a high frequency of mutations conferring avermectin (G314D and G326E) and pyridaben (H92R) resistance. The frequency of mutation conferring bifenazate (A269V and G126S) and etoxazole (I1017F) resistance was relatively low. Multiple mutations were common in the TSSM, with 70.2% and 24.6% of individuals having 2-6 and 7-10 of 10 possible resistant alleles, respectively. No loci were linked in most populations among the six mutations, indicating the development of multiple resistance is mainly by independent selection. However, G314D and I1017F on the nuclear genome deviated from Hardy-Weinberg equilibrium in most populations, indicating significant selective pressure on TSSM populations by acaricides or fitness cost of the mutations in the absence of acaricide selection. ConclusionOur study revealed that the high frequency of TSSMs evolved multiple resistant mutations in population and individual levels by independent selection across China, alarming for managing multiple-acaricides resistance. (c) 2023 Society of Chemical Industry.
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