Effect of sublethal doses of the insecticide imidacloprid on adaptive traits of Drosophila melanogaster: Response to treatment over and after 15 consecutive generations

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorPatarro, Thais de França [UNESP]
dc.creatorManzato, Antonio José [UNESP]
dc.creatorMadi-Ravazzi, Lilian [UNESP]
dc.creatorBicudo, Hermione Elly Melara de Campos [UNESP]
dc.date2015-04-27T11:55:53Z
dc.date2015-04-27T11:55:53Z
dc.date2013
dc.date.accessioned2023-09-12T04:42:20Z
dc.date.available2023-09-12T04:42:20Z
dc.identifierhttp://www.scirp.org/Journal/PaperInformation.aspx?PaperID=39670#.VSvxw9zF_z0
dc.identifierOpen Journal of Animal Sciences, v. 3, n. 4B, p. 8-19, 2013.
dc.identifier2161-7597
dc.identifierhttp://hdl.handle.net/11449/122592
dc.identifier10.4236/ojas.2013.34A2002
dc.identifierISSN2161-7597-2013-03-04-08-19
dc.identifier2751372536922325
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8772042
dc.descriptionA sublethal dose of Imidacloprid, considered actually as the most widely used insecticide against biting and sucking insects, was administered to Drosophila melanogaster for detecting effects on biological traits. The choice of this species as organism-model potentially opens the possibility to explore more deeply the processes involved in those effects because, among other reasons, there is a large accumulation of biological knowledge on this species and because it propitiates multiple approaches in laboratory and nature. The flies were treated along 15 consecutive generations. F1 parents were randomly taken among virgin flies from the stocks, but the parents of the successive generations were the first 15 couples emerged in the previous one. The number of progeny (productivity) and the duration of the emergence period were analyzed in every generation revealing insecticide toxicity in 12 of the 15 generations. The observation of an increase in the number of progeny over the generations, which occurred in both control and treated experiments (although maintaining higher productivity in the control), suggested an effect of the use of the first 15 emerged couples in successive generations. A comparative analysis of the mortality of the F15 adult flies exposed to imidacloprid by contact, which involved flies from the control, treatment and from the stocks that originated the experiments, reinforced this idea, indicating a genetic interplay of the emergence speed with productivity and adult tolerance to the insecticide, a subject that may be better explored in another study. Toxicity was also observed for the traits longevity, viability during development from egg to adult and oviposition rate. Considering the present intensive use of imidacloprid, the harmful effects observed in these important biological characteristics may be considered able to decrease the adaptive value of D. melanogaster populations exposing them at risk of decline.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionUniversidade Estadual Paulista Júlio de Mesquita Filho, Instituto de Biociencias Letras e Ciencias Exatas de Sao Jose do Rio Preto, Unesp, Sao Jose do Rio Preto, UNESP-INSTITUTO DE BIOCIENCIAS LETRAS E CIENCIAS EXATAS-IBILCE DEPT. DE BIOLOGIA. RUA CRISTOVAO COLOMBO, 2265, JD NAZARE, CEP 15054-000, SP, Brasil
dc.descriptionUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Biologia, Instituto de Biociencias Letras e Ciencias Exatas de Sao Jose do Rio Preto
dc.format8-19
dc.languageeng
dc.relationOpen Journal of Animal Sciences
dc.rightsAcesso aberto
dc.sourceCurrículo Lattes
dc.subjectProductivity
dc.subjectLongevity
dc.subjectEmergence Time Period
dc.subjectEgg-Adult Viability
dc.subjectOviposition
dc.subjectTolerance
dc.titleEffect of sublethal doses of the insecticide imidacloprid on adaptive traits of Drosophila melanogaster: Response to treatment over and after 15 consecutive generations
dc.typeArtigo


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