Geometric Morphometrics of Nine Field Isolates of Aedes aegypti with Different Resistance Levels to Lambda-Cyhalothrin and Relative Fitness of One Artificially Selected for Resistance

dc.creatorJaramillo Ocampo, Nicolás
dc.creatorFonseca González, Idalyd
dc.creatorChaverra Rodríguez, Duverney de Jesús
dc.date2021-11-03T14:14:27Z
dc.date2021-11-03T14:14:27Z
dc.date2014
dc.date.accessioned2023-08-28T19:39:45Z
dc.date.available2023-08-28T19:39:45Z
dc.identifierJaramillo, N., Fonseca, I., Chaverra, D. (2014) Geometric Morphometrics of Nine Field Isolates of Aedes aegypti with Different Resistance Levels to Lambda-Cyhalothrin and Relative Fitness of One Artificially Selected for Resistance. PLoS ONE 9(5): e96379. doi:10.1371/journal.pone.0096379
dc.identifierhttp://hdl.handle.net/10495/23718
dc.identifier10.1371/journal.pone.0096379
dc.identifier1932-6203
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8465984
dc.descriptionABSTRACT: Aedes aegypti, a mosquito closely associated with humans, is the principal vector of dengue virus which currently infects about 400 million people worldwide. Because there is no way to prevent infection, public health policies focus on vector control; but insecticide-resistance threatens them. However, most insecticide-resistant mosquito populations exhibit fitness costs in absence of insecticides, although these costs vary. Research on components of fitness that vary with insecticideresistance can help to develop policies for effective integrated management and control. We investigated the relationships in wing size, wing shape, and natural resistance levels to lambda-cyhalothrin of nine field isolates. Also we chose one of these isolates to select in lab for resistance to the insecticide. The main life-traits parameters were assessed to investigate the possible fitness cost and its association with wing size and shape. We found that wing shape, more than wing size, was strongly correlated with resistance levels to lambda-cyhalothrin in field isolates, but founder effects of culture in the laboratory seem to change wing shape (and also wing size) more easily than artificial selection for resistance to that insecticide. Moreover, significant fitness costs were observed in response to insecticide-resistance as proved by the diminished fecundity and survival of females in the selected line and the reversion to susceptibility in 20 generations of the non-selected line. As a practical consequence, we think, mosquito control programs could benefit from this knowledge in implementing efficient strategies to prevent the evolution of resistance. In particular, the knowledge of reversion to susceptibility is important because it can help in planning better strategies of insecticide use to keep useful the few insecticide-molecules currently available.
dc.descriptionCOL0007865
dc.format15
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherPublic Library of Science
dc.publisherBiología y Control de Enfermedades Infecciosas
dc.publisherSan Francisco, Estados Unidos
dc.relationPLoS ONE
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by/2.5/co/
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.rightshttps://creativecommons.org/licenses/by/4.0/
dc.subjectResistencia a los Insecticidas
dc.subjectInsecticide Resistance
dc.subjectAedes aegypti
dc.subjectLambda-cihalotrina
dc.subjectLambda-cyhalothrin
dc.subjecthttp://aims.fao.org/aos/agrovoc/c_30482
dc.subjecthttp://aims.fao.org/aos/agrovoc/c_35077
dc.titleGeometric Morphometrics of Nine Field Isolates of Aedes aegypti with Different Resistance Levels to Lambda-Cyhalothrin and Relative Fitness of One Artificially Selected for Resistance
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typehttp://purl.org/coar/resource_type/c_2df8fbb1
dc.typehttps://purl.org/redcol/resource_type/ART
dc.typeArtículo de investigación


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