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Duplication of acetylcholinesterase gene in diamondback moth strains with different sensitivities to acephate

文献类型： 外文期刊

作者： Sonoda, Shoji 1 ; Shi, Xueyan 1 ; Song, Dunlun 1 ; Liang, Pei 1 ; Gao, Xiwu 1 ; Zhang, Youjun 2 ; Li, Jianhong 3 ; Liu, Y 1 ;

作者机构： 1.China Agr Univ, Dept Entomol, Beijing 100094, Peoples R China

2.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China

3.Huazhong Agr Univ, Dept Plant Protect, Wuhan 430070, Hubei, Peoples R China

4.Hunan Acad Agr Sci, Hunan Plant Protect Inst, Changsha 410125, Hunan, Peoples R China

5.Guizhou Univ, Crop Protect Inst, Guiyang 550025, Guizhou, Peoples R China

6.NARO Kyushu Okinawa Agr Res Ctr, Koshi, Kumamoto 8611192, Japan

7.Nagoya Univ, Grad Sch Bioagr Sci, Nagoya, Aichi 4648601, Japan

关键词： Acetylcholinesterase;Diamondback moth;Gene duplication;Mutation;Organophosphate

期刊名称：INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY （ 影响因子：4.714； 五年影响因子：4.953 ）

ISSN： 0965-1748

年卷期： 2014 年 48 卷

页码：

收录情况： SCI

摘要： This study examined the acetylcholinesterase 1 gene (AChE1) in Plutella xylostella strains with different sensitivities to acephate. Multiple haplotypes of the gene were found in the field-collected strains including distinct haplotypes carrying one or both previously reported mutations (A298S and G324A). Moreover, sequencing results indicated the presence of duplicated copies of the gene in the field-collected strains. No correlation was found between copy numbers of AChE1 and levels of resistance to acephate suggesting that extensive AChE1 duplication is not a major resistance factor at least in some P. xylostella strains. Proportions of the A298S and G324A mutations showed no correlation with levels of resistance to acephate. This suggests that acephate resistance of P. xylostella is complex and cannot be evaluated based on the AChE1 copy number or proportions of the resistance mutations alone. (C) 2014 Elsevier Ltd. All rights reserved.

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[1]Frequencies of the M918I mutation in the sodium channel of the diamondback moth in China, Thailand and Japan and its association with pyrethroid resistance. Wari, David,Shi, Xueyan,Song, Dunlun,Liang, Pei,Gao, Xiwu,Zhang, Youjun,Li, Jianhong,Wu, Gang,Liu, Yong,Li, Ming,Matsumura, Masaya,Minakuchi, Chieka,Tanaka, Toshiharu,Miyata, Tadashi. 2012

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