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dc.contributor.authorSOSA-GÓMEZ, D. R.pt_BR
dc.contributor.authorMIRANDA, J. E.pt_BR
dc.date.accessioned2013-03-12T11:11:11Zpt_BR
dc.date.available2013-03-12T11:11:11Zpt_BR
dc.date.created2013-03-12pt_BR
dc.date.issued2012pt_BR
dc.identifier.citationRevista Brasileira de Entomologia, v. 56, n. 3, p. 359-362, Set. 2012.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/952776pt_BR
dc.descriptionSelection pressure to obtain resistant genotypes can result in fitness cost. In this study, we report the effects of the selection pressure of a commercial formulation of Bacillus thuringiensis on biological aspects of a Dipel-resistant strain of velvetbean caterpillar, Anticarsia gemmatalis Hübner. Comparisons of Dipel-resistant and susceptible individuals revealed significant differences in pupal weight and larval development time. Both strains (Dipel-resistant and susceptible) were susceptible to Cry1Ac toxin expressed in foliar cotton tissues. Resistant and susceptible strains showed low survival rates of 22.5% and 51.2%, respectively, when fed with Greene diet containing Bt-cotton. Larvae bioassayed after three laboratory generations presented lower survival and less instar numbers than individuals maintained in the laboratory for more than 144 generations. Pupal weight was 9.4% lower and larval development time was 1.9 days longer in the resistant population than in the susceptible strain. Other parameters, such as duration of pupal stage, adult longevity, number of eggs per female, oviposition period, and egg fertility, remained unaffected. Keywords: Anticarsia gemmatalis; toxin; Cry1Ac; Dipel-resistant; strain.pt_BR
dc.language.isoengeng
dc.relation.ispartofseries0085-5626pt_BR
dc.rightsopenAccesseng
dc.subjectCry1 Aceng
dc.subjectDipeleng
dc.titleFitness cost of resistance to bacillus thuringiensisin velvetbean caterpillar anticarsia gemmatalishübner (lepidoptera, noctuidae).pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-06-21T11:11:11Zpt_BR
dc.subject.thesagroSojapt_BR
dc.subject.thesagroRaçaeng
dc.subject.thesagroToxinaeng
dc.subject.thesagroAnticarsia Gemmataliseng
dc.subject.nalthesaurusToxinseng
dc.subject.nalthesaurusSoybeanseng
dc.subject.nalthesaurusAnticarsiaeng
riaa.ainfo.id952776pt_BR
riaa.ainfo.lastupdate2017-06-21pt_BR
dc.contributor.institutionDANIEL RICARDO SOSA GOMEZ, CNPSO; JOSE EDNILSON MIRANDA, CNPA.pt_BR
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