32
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Effect of Insecticide Resistance on Development, Longevity and Reproduction of Field or Laboratory Selected Aedes aegypti Populations

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Aedes aegypti dispersion is the major reason for the increase in dengue transmission in South America. In Brazil, control of this mosquito strongly relies on the use of pyrethroids and organophosphates against adults and larvae, respectively. In consequence, many Ae. aegypti field populations are resistant to these compounds. Resistance has a significant adaptive value in the presence of insecticide treatment. However some selected mechanisms can influence important biological processes, leading to a high fitness cost in the absence of insecticide pressure. We investigated the dynamics of insecticide resistance and its potential fitness cost in five field populations and in a lineage selected for deltamethrin resistance in the laboratory, for nine generations. For all populations the life-trait parameters investigated were larval development, sex ratio, adult longevity, relative amount of ingested blood, rate of ovipositing females, size of egglaying and eggs viability. In the five natural populations, the effects on the life-trait parameters were discrete but directly proportional to resistance level. In addition, several viability parameters were strongly affected in the laboratory selected population compared to its unselected control. Our results suggest that mechanisms selected for organophosphate and pyrethroid resistance caused the accumulation of alleles with negative effects on different life-traits and corroborate the hypothesis that insecticide resistance is associated with a high fitness cost.

          Related collections

          Most cited references34

          • Record: found
          • Abstract: not found
          • Article: not found

          The hitch-hiking effect of a favourable gene.

            Bookmark
            • Record: found
            • Abstract: not found
            • Book: not found

            Evolution in age-structured populations

              Bookmark
              • Record: found
              • Abstract: not found
              • Book: not found

              The Genetical Theory of Natural Selection

                Bookmark

                Author and article information

                Contributors
                Role: Editor
                Journal
                PLoS One
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, USA )
                1932-6203
                2012
                14 March 2012
                : 7
                : 3
                : e31889
                Affiliations
                [1 ]Laboratório de Fisiologia e Controle de Artrópodes Vetores, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
                [2 ]Laboratório de Entomologia, Instituto de Biologia do Exército, Rio de Janeiro, Rio de Janeiro, Brazil
                [3 ]Pronex - Rede Dengue, CNPq, Rio de Janeiro, Rio de Janeiro, Brazil
                [4 ]Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM), CNPq, Rio de Janeiro, Rio de Janeiro, Brazil
                [5 ]Laboratório de Biologia Molecular de Insetos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
                Kansas State University, United States of America
                Author notes

                Conceived and designed the experiments: AJM JBPL AAP DV. Performed the experiments: AJM CDMR DFB. Analyzed the data: AJM CDMR. Contributed reagents/materials/analysis tools: JBPL DV. Wrote the paper: AJM AAP DV.

                [¤]

                Current address: Vice-Diretoria de Pesquisa, Desenvolvimento Tecnológico e Inovação, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brasil

                Article
                PONE-D-11-16359
                10.1371/journal.pone.0031889
                3303777
                22431967
                e0146c47-4c0d-43fc-9796-7ca0e168af6b
                Martins et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
                History
                : 18 August 2011
                : 16 January 2012
                Page count
                Pages: 9
                Categories
                Research Article
                Agriculture
                Agrochemicals
                Pest Control
                Biology
                Ecology
                Evolutionary Biology
                Organismal Evolution
                Population Genetics
                Microbiology
                Vector Biology
                Zoology
                Medicine
                Infectious Diseases
                Vectors and Hosts

                Uncategorized
                Uncategorized

                Comments

                Comment on this article