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FITNESS ASPECTS OF TRANSGENIC AEDES FLUVIATILIS MOSQUITOES EXPRESSING A PLASMODIUM-BLOCKING MOLECULE
Fitness
Insecticide
Geometric morphometrics
Phospholipase A2
Autor
Afiliación
Fundação Oswaldo Cruz. Centro de Pesquisas Rene Rachou. Malaria Laboratory. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas Rene Rachou. Malaria Laboratory. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas Rene Rachou. Malaria Laboratory. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas Rene Rachou. Laboratory of Triatomines and Epidemiology of Chagas Disease. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratory of Physiology and Control of Arthropod Vectors. Rio de Janeiro, RJ, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas Rene Rachou. Malaria Laboratory. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas Rene Rachou. Malaria Laboratory. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Centro de Pesquisas Rene Rachou. Laboratory of Triatomines and Epidemiology of Chagas Disease. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratory of Physiology and Control of Arthropod Vectors. Rio de Janeiro, RJ, Brazil.
Resumen en ingles
Vector-borne diseases cause millions of deaths every year globally. Alternatives for the control of diseases such as malaria and dengue fever are urgently needed and the use of transgenic mosquitoes that block parasite/virus is a sound strategy to be used within control programs. However, prior to use transgenic mosquitoes as control tools, it is important to study their fitness since different biological aspects might influence their ability to disseminate and compete with wild populations. We previously reported the construction of four transgenic Aedes fluviatilismosquito lines expressing a Plasmodium-blocking molecule (mutated bee venom phospholipase A2–mPLA2). Presently we studied two aspects of their fitness: body size, that has been used as a fitness-related status, and the expression of major enzymes classes involved in the metabolism of xenobiotics, including insecticides. Body size analysis (recorded by geometric wing morphometrics) indicated that both male and female mosquitoes were larger than the non-transgenic counterparts, suggesting that this charac-teristic might have an impact on their overall fitness. By contrast, no significant difference in the activity of enzymes related to metabolic insecticide resistance was detected in transgenic mosquitoes. The implica-tion on fitness advantage of these features, towards the implementation of this strategy, is further discussed.
Palabras clave en ingles
Transgenic mosquitoFitness
Insecticide
Geometric morphometrics
Phospholipase A2
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