[Presumptive role of Wolbachia in deltamethrin resistance of Culex pipiens pallens].

Objective: To investigate the relationship between Wolbachia and deltamethrin resistance in Culex pipiens pallens.

Methods: PCR was used to detect Wolbachia in Culex pipiens pallens and qRT-PCR was performed to determine and compare the expression of Wolbachia between deltamethrin- resistant and - susceptible strains of Culex pipiens pallens.

Results: Wolbachia was detected in Culex pipiens pallens in the laboratory.

Functional characterization of an arrestin gene on insecticide resistance of Culex pipiens pallens.

Background: Continuous and excessive application of insecticides has resulted in the rapid development of insecticide resistance in several mosquito species, including Culex pipiens pallens. Previous studies in our laboratory found that arrestin gene expression was higher in the deltamethrin-resistant (DR) strain than in the deltamethrin-susceptible (DS) strain of Cx. pipiens pallens.