Frequencies of the M918I mutation in the sodium channel of the diamondback moth in China, Thailand and Japan and its association with pyrethroid resistance
文献类型: 外文期刊
第一作者: Wari, David
作者: 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
作者机构:
关键词: Diamondback moth;Insecticide resistance;Plutella xylostella;Pyrethroid;Sodium channel
期刊名称:PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY ( 影响因子:3.963; 五年影响因子:4.454 )
ISSN: 0048-3575
年卷期: 2012 年 102 卷 2 期
页码:
收录情况: SCI
摘要: In addition to the allele frequencies of the L1014F and T929I mutations which are involved in nerve-insensitive resistance to a pyrethroid, those of the M918I mutation were examined using field strains obtained in China, Thailand, and Japan during 2009-2011. Results show that the resistance allele frequencies at the L1014F site were 89-100%, 97-100% and 65-85%, respectively, for strains in China, Thailand, and Japan. The respective allele frequencies at the T929I site were 86-100%, 70-97% and 58-84% for Chinese, Thai, and Japanese strains. With low frequencies up to 27%, M918I was found in Japan and China, but not in Thailand. The strain homozygous for the M918I and L1014F mutations was established and its resistance level to a pyrethroid was examined. The strain lacks a portion of the sodium channel gene corresponding to the 3' portion of exon 18a, intron 18, and the 5' portion of exon 18b. Nevertheless, the strain showed a similar level of resistance to that which was homozygous for the T929I and L1014F mutations. (C) 2011 Elsevier Inc. All rights reserved.
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