Bidirectional selection for body mass and correlated response of pyrethroid resistance and fitness in Sitophilus zeamais

dc.creatorCorrea, AS
dc.creatorTolledo, J
dc.creatorPereira, EJG
dc.creatorGuedes, RNC
dc.date2011
dc.dateMAY
dc.date2014-07-30T13:51:53Z
dc.date2015-11-26T17:10:56Z
dc.date2014-07-30T13:51:53Z
dc.date2015-11-26T17:10:56Z
dc.date.accessioned2018-03-28T23:59:29Z
dc.date.available2018-03-28T23:59:29Z
dc.identifierJournal Of Applied Entomology. Wiley-blackwell, v. 135, n. 4, n. 285, n. 292, 2011.
dc.identifier0931-2048
dc.identifierWOS:000289161800005
dc.identifier10.1111/j.1439-0418.2010.01537.x
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/55456
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/55456
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1280984
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionResponses to artificial selection on body mass in the maize weevil Sitophilus zeamais (Coleoptera: Curculionidae) were investigated to determine whether changes in body mass are associated with insecticide susceptibility, rate of population growth, and metabolic rate. Two strains of the maize weevil differing in susceptibility to pyrethroid insecticides were subjected to bidirectional selection on body mass. The susceptible strain responded to selection resulting in individuals with lower or higher body mass, but the resistant strain responded significantly only to selection for lower body mass. The resistant strain selected for low body mass increased its level of deltamethrin resistance in 44 x . In contrast, selection for low body mass in the susceptible parental strain led to increased deltamethrin susceptibility (50 x ) and selection for high body mass increased deltamethrin resistance (4 x ). Thus, the correlated response of insecticide resistance to selection for body mass differed between strains, a likely consequence of their distinct genetic background. Regardless, body mass was positively correlated with fitness (reproductive output) (r = 0.79; P < 0.001), while such correlation with respiration rate was significant only at P = 0.07 (r = 0.44). Therefore, the association between body mass and deltamethrin resistance is population-dependent in the maize weevil, and the confluence of deltamethrin resistance and high body mass in a given strain will likely favour its energy metabolism and lead to the mitigation of fitness costs usually associated with insecticide resistance. The genetic background and selection history of insecticide resistant populations should not be neglected since they may favour the confluence of insecticide resistance with mitigation mechanisms of its associated fitness costs limiting the tactics available to their management.
dc.description135
dc.description4
dc.description285
dc.description292
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageen
dc.publisherWiley-blackwell
dc.publisherMalden
dc.publisherEUA
dc.relationJournal Of Applied Entomology
dc.relationJ. Appl. Entomol.
dc.rightsfechado
dc.rightshttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.sourceWeb of Science
dc.subjectartificial selection
dc.subjectbody mass
dc.subjectfitness cost
dc.subjectgrain beetles
dc.subjectpyrethroid resistance
dc.subjectFlour Beetle Coleoptera
dc.subjectStored-product Insects
dc.subjectMaize Weevil
dc.subjectCallosobruchus-maculatus
dc.subjectSusceptible Populations
dc.subjectBrazilian Populations
dc.subjectLarval Competition
dc.subjectMating Competition
dc.subjectRespiration Rate
dc.subjectCulex-pipiens
dc.titleBidirectional selection for body mass and correlated response of pyrethroid resistance and fitness in Sitophilus zeamais
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución