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Fitness Cost of Sequential Selection with Deltamethrin in Aedes aegypti (Diptera: Culicidae).
Gonzalez-Santillan, Francisco J; Contreras-Perera, Yamili; Davila-Barboza, Jesus A; Juache-Villagrana, Alan E; Gutierrez-Rodriguez, Selene M; Ponce-Garcia, Gustavo; Lopez-Monroy, Beatriz; Rodriguez-Sanchez, Iram P; Lenhart, Audrey E; Mackenzie-Impoinvil, Lucy; Flores, Adriana E.
Afiliação
  • Gonzalez-Santillan FJ; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
  • Contreras-Perera Y; Universidad Autonoma de Yucatan, UCBE-UADY, Merida, Yucatan, Mexico.
  • Davila-Barboza JA; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
  • Juache-Villagrana AE; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
  • Gutierrez-Rodriguez SM; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
  • Ponce-Garcia G; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
  • Lopez-Monroy B; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
  • Rodriguez-Sanchez IP; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
  • Lenhart AE; Entomology Branch, Division of Parasitic Disease and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
  • Mackenzie-Impoinvil L; Entomology Branch, Division of Parasitic Disease and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
  • Flores AE; Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Avenida Universidad s/n Ciudad Universitaria, San Nicolas de los Garza, NL 66455, Mexico.
J Med Entomol ; 59(3): 930-939, 2022 05 11.
Article em En | MEDLINE | ID: mdl-35389486
In Mexico, Aedes aegypti (L.) is the primary dengue vector, chikungunya, and Zika viruses. The continued use of synthetic pyrethroids has led to the development of resistance in target populations, which has diminished the effectiveness of vector control programs. Resistance has been associated with disadvantages that affect the biological parameters of resistant mosquitoes compared to susceptible ones. In the present study, the disadvantages were evaluated by parameters related to survival and reproduction ('fitness cost') after selection with deltamethrin for five generations. The parameters analyzed were the length of the development cycle, sex ratio, survival, longevity, fecundity, egg viability, preoviposition, oviposition and postoviposition periods, and growth parameters. In the deltamethrin-selected strain, there was a decrease in the development cycle duration, the percentage of pupae, the oviposition period, and eggs viability. Although mean daily fecundity was not affected after the selection process, this, together with the decrease in the survival and fecundity levels by specific age, significantly affected the gross reproductive rate (GRR), net reproductive rate (Ro), and intrinsic growth rate (rm) of the group selected for five generations with deltamethrin compared to the group without selection. Identifying the 'cost' of resistance in biological fitness represents an advantage if it is desired to limit the spread of resistant populations since the fitness cost is the less likely that resistant individuals will spread in the population. This represents an important factor to consider in designing integrated vector management programs.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Piretrinas / Aedes / Zika virus / Infecção por Zika virus / Inseticidas Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Piretrinas / Aedes / Zika virus / Infecção por Zika virus / Inseticidas Idioma: En Ano de publicação: 2022 Tipo de documento: Article