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[Drug resistance evolution of dichlorvos-resistant and cypermethrin-resistant strains of Culex pipiens pallens].

Authors
  • Li, Shi-Gen
Type
Published Article
Journal
Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases
Publication Date
Aug 01, 2009
Volume
27
Issue
4
Pages
311–312
Identifiers
PMID: 20066985
Source
Medline
License
Unknown

Abstract

Susceptible strain of Culex pipiens pallens was selected with dichlorvos and cypermethrin for 42 generations in the laboratory. At generation 42, the resistance level to dichlorvos and cypermethrin was 12.2-fold and 534.3-fold, respectively, in comparison to their parent generations. The dichlorvos-resistant and cypermethrin-resistant strains were then conventionally bred for another 20 generations, the resistance level to dichlorvos and cypermethrin decreased to 6.1-fold and 83.3-fold, respectively. The results indicated that the two resistant strains showed different development of resistance.

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