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Insects 2016, 7(4), 60; doi:10.3390/insects7040060

Sodium Channel Mutations and Pyrethroid Resistance in Aedes aegypti

1
Department of Entomology, Genetics and Neuroscience Programs, Michigan State University, East Lansing, MI 48824, USA
2
Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
3
Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg 194223, Russia
Current address: USDA-ARS, Biological Control of Pest Research Unit, 59 Lee Road, Stoneville, MS 38776, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Steven P. Bradbury and Joel R. Coats
Received: 2 September 2016 / Revised: 22 October 2016 / Accepted: 26 October 2016 / Published: 31 October 2016
(This article belongs to the Special Issue Insect Molecular Toxicology)
View Full-Text   |   Download PDF [1441 KB, uploaded 31 October 2016]   |  

Abstract

Pyrethroid insecticides are widely used to control insect pests and human disease vectors. Voltage-gated sodium channels are the primary targets of pyrethroid insecticides. Mutations in the sodium channel have been shown to be responsible for pyrethroid resistance, known as knockdown resistance (kdr), in various insects including mosquitoes. In Aedes aegypti mosquitoes, the principal urban vectors of dengue, zika, and yellow fever viruses, multiple single nucleotide polymorphisms in the sodium channel gene have been found in pyrethroid-resistant populations and some of them have been functionally confirmed to be responsible for kdr in an in vitro expression system, Xenopus oocytes. This mini-review aims to provide an update on the identification and functional characterization of pyrethroid resistance-associated sodium channel mutations from Aedes aegypti. The collection of kdr mutations not only helped us develop molecular markers for resistance monitoring, but also provided valuable information for computational molecular modeling of pyrethroid receptor sites on the sodium channel. View Full-Text
Keywords: sodium channel; pyrethroid insecticide; knockdown resistance; Aedes aegypti sodium channel; pyrethroid insecticide; knockdown resistance; Aedes aegypti
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MDPI and ACS Style

Du, Y.; Nomura, Y.; Zhorov, B.S.; Dong, K. Sodium Channel Mutations and Pyrethroid Resistance in Aedes aegypti. Insects 2016, 7, 60.

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