Variation at the Est3 locus and adaptability to organophosphorous compounds in Zaprionus indianus populations

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dc.contributor.authorGalego, Luis Gustavo da Conceição [UNESP]
dc.contributor.authorCarareto, Claudia Marcia Aparecida [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:32:05Z
dc.date.available2014-05-20T15:32:05Z
dc.date.issued2010-01-01
dc.description.abstractCarboxylesterases are enzymes often associated with insect resistance to insecticides. The Est3 locus of Zaprionus indianus Gupta (Diptera: Drosophilidae) harbors four alleles that encode carboxylesterases with potentially detoxifying roles. In this study, we propose a model of resistance to insecticides in Z. indianus based on the adaptability of the Est3 locus inferred from the spread of its alleles over 27 generations in experimental populations, and their frequencies in field populations, which were either exposed or unexposed to the organophosphorous insecticide malathion. The increase in the frequency of this allele in experimental populations, and its high prevalence in field populations exposed to organophosphorous insecticides suggest that natural selection favors individuals with the Est3-3 allele. The low frequency of this allele in unexposed field populations, and the low productivity of Est3-3 homozygotes indicate that an adaptive cost is associated with this allele. The existence of a marker locus for insecticide resistance in Z. indianus makes it possible to use this species as a bioindicator for monitoring the excessive use of organophosphorous products and the emergence of resistance, and to devise strategies for the management of agricultural pests.en
dc.description.affiliationSão Paulo State Univ, UNESP, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, UNESP, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 04/05235-7
dc.format.extent97-105
dc.identifierhttp://dx.doi.org/10.1111/j.1570-7458.2009.00941.x
dc.identifier.citationEntomologia Experimentalis Et Applicata. Malden: Wiley-blackwell Publishing, Inc, v. 134, n. 1, p. 97-105, 2010.
dc.identifier.doi10.1111/j.1570-7458.2009.00941.x
dc.identifier.issn0013-8703
dc.identifier.lattes3425772998319216
dc.identifier.orcid0000-0002-0298-1354
dc.identifier.urihttp://hdl.handle.net/11449/41081
dc.identifier.wosWOS:000272308300009
dc.language.isoeng
dc.publisherWiley-Blackwell Publishing, Inc
dc.relation.ispartofEntomologia Experimentalis et Applicata
dc.relation.ispartofjcr1.454
dc.relation.ispartofsjr0,766
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCarboxylesteraseen
dc.subjectResistanceen
dc.subjectInseticideen
dc.subjectadaptive costen
dc.subjectexperimental populationsen
dc.subjectDipteraen
dc.subjectDrosophilidaeen
dc.titleVariation at the Est3 locus and adaptability to organophosphorous compounds in Zaprionus indianus populationsen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell Publishing, Inc
unesp.author.lattes3425772998319216[2]
unesp.author.lattes3425772998319216[2]
unesp.author.orcid0000-0002-6081-2700[1]
unesp.author.orcid0000-0002-0298-1354[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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