Permethrin Resistance Status and Associated Mechanisms in Aedes albopictus (Diptera: Culicidae) From Chiapas, Mexico.


Journal

Journal of medical entomology
ISSN: 1938-2928
Titre abrégé: J Med Entomol
Pays: England
ID NLM: 0375400

Informations de publication

Date de publication:
12 03 2021
Historique:
received: 28 05 2020
pubmed: 10 10 2020
medline: 20 5 2021
entrez: 9 10 2020
Statut: ppublish

Résumé

There are major public health concerns regarding the spread of mosquito-borne diseases such as dengue, Zika, and chikungunya, which are mainly controlled by using insecticides against the vectors, Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse). Pyrethroids are the primary class of insecticides used for vector control, due to their rapid knockdown effect and low toxicity to vertebrates. Unfortunately, continued use of pyrethroids has led to widespread insecticide resistance in Ae. aegypti; however, we lack information for Ae. albopictus-a sympatric species in Chiapas since 2002. In this study, we evaluated the permethrin resistance status of Ae. albopictus collected from Mexico and Texas. We also selected for permethrin resistance in the laboratory and investigated the potential mechanisms conferring resistance in this species. Knockdown resistance mutations, specifically F1534C, in the voltage-gated sodium channel gene, and increased activity of detoxifying enzymes were evaluated. Low levels of permethrin resistance (<2.4-fold) were observed in our field populations of Ae. albopictus and the F1534C mutation was not detected in any of the sites. Low levels of resistance were also observed in the artificially selected strain. There was significantly higher cytochrome P450 activity in our permethrin-selected and nonselected strains from Mexico compared to the control strain. Our results suggest the Ae. albopictus sampled from 2016 are mostly susceptible to pyrethroids. These results contrast with the high levels of permethrin resistance (>58-fold) found in Ae. aegypti from the same sites in Mexico. This research indicates the importance of continued monitoring of Ae. albopictus populations to prevent resistance from developing in the future.

Identifiants

pubmed: 33034352
pii: 5920092
doi: 10.1093/jme/tjaa197
pmc: PMC7954096
doi:

Substances chimiques

Insect Proteins 0
Insecticides 0
Pyrethrins 0
Voltage-Gated Sodium Channels 0
Permethrin 509F88P9SZ

Types de publication

Journal Article Research Support, N.I.H., Extramural

Langues

eng

Sous-ensembles de citation

IM

Pagination

739-748

Subventions

Organisme : NIAID NIH HHS
ID : R01 AI121211
Pays : United States

Informations de copyright

© The Author(s) 2020. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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Auteurs

Ashley J Janich (AJ)

Arthropod Borne Infectious Disease Laboratory, Colorado State University, Fort Collins, CO.

Karla Saavedra-Rodriguez (K)

Arthropod Borne Infectious Disease Laboratory, Colorado State University, Fort Collins, CO.

Farah Z Vera-Maloof (FZ)

Arthropod Borne Infectious Disease Laboratory, Colorado State University, Fort Collins, CO.

Rebekah C Kading (RC)

Arthropod Borne Infectious Disease Laboratory, Colorado State University, Fort Collins, CO.

Américo D Rodríguez (AD)

Centro Regional de Investigación en Salud Pública, Tapachula, Chiapas, Mexico.

Patricia Penilla-Navarro (P)

Centro Regional de Investigación en Salud Pública, Tapachula, Chiapas, Mexico.

Alma D López-Solis (AD)

Centro Regional de Investigación en Salud Pública, Tapachula, Chiapas, Mexico.

Francisco Solis-Santoyo (F)

Centro Regional de Investigación en Salud Pública, Tapachula, Chiapas, Mexico.

Rushika Perera (R)

Arthropod Borne Infectious Disease Laboratory, Colorado State University, Fort Collins, CO.

William C Black (WC)

Arthropod Borne Infectious Disease Laboratory, Colorado State University, Fort Collins, CO.

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Classifications MeSH