Duplication of acetylcholinesterase gene in diamondback moth strains with different sensitivities to acephate
文献类型: 外文期刊
第一作者: Shi, Xueyan
作者: Shi, Xueyan;Song, Dunlun;Liang, Pei;Gao, Xiwu;Zhang, Youjun;Li, Jianhong;Liu, Yong;Li, Ming;Matsumura, Masaya;Sanada-Morimura, Sachiyo;Minakuchi, Chieka;Tanaka, Toshiharu;Miyata, Tadashi
作者机构:
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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