• Title/Summary/Keyword: 에스터레이즈 과발현

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Selection of Insecticide Resistance Markers in Field-collected Populations of Myzus persicae (복숭아혹진딧물 야외개체군의 살충제 저항성 마커 선발)

  • Kim, Ju Il;Kwon, Min;Shim, Jae Dong;Kim, Jeom Soon;Lee, Yeong Gyu;Jee, Sam Nyu;Lee, Jeong Tae;Ryu, Jong Soo;Yoo, Dong Lim;Lee, Gye Jun
    • Korean journal of applied entomology
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    • v.53 no.2
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    • pp.149-156
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    • 2014
  • The resistance levels of the green peach aphid, Myzus persicae (Sulzer), against 10 insecticides was checked and selected the applicable insecticide resistance markers. We conducted our study in 5 cabbage cultivation regions (Pyeongchang, Hongcheon, Bongwha, Muju, and Jeju) of Korea, over 3 successive years (2009-2011). We selected a multi-resistant (MR) strain from among the 5 field-collected populations. We analyzed esterase over-expression and mutation(s) in the target sites, by using native isoelectric focusing (IEF) and quantitative sequencing (QS). We detected esterase over-expression and StoF mutation in the acetylcholinesterase 1 gene (ace1) in all of the field-collected populations, including the MR strain. We did not detect the LtoF mutation, which is a well-known knockdown resistance (kdr) mutation in the para-type sodium channel gene (para), in the MR strain; however, the value of the MR strain for bifenthrin was 3,461-fold higher than that of the susceptible strain. Our results indicate that insecticide resistance is more effectively evaluated using molecular markers than by conducting a bioassay. The molecular markers StoF in ace1 and MtoL in para can easily be applied in diagnostic methods such as QS or PCR amplification of specific alleles (PASA). These methods may be extended to management of M. persicae resistance in the field.