Seasonal population dynamics and the genetic structure of the mosquito vector Aedes aegypti in São Paulo,Brazil |
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| Authors: | Melina Campos Carine Spenassatto Maria de Lourdes da Graça Macoris Karina dos Santos Paduan João Pinto Paulo Eduardo Martins Ribolla |
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| Institution: | 1.Departamento de Parasitologia, Instituto de Biociências, UNESP, Botucatu, São Paulo, Brazil;2.Superintendencia de Controle de Endemias, SUCEN, Marília, São Paulo, Brazil;3.UEI Parasitologia Médica/Centro de Malária e outras Doenças Tropicais, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Portugal |
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| Abstract: | Population genetic studies of insect vectors can generate knowledge to improve epidemiological studies focused on the decrease of pathogen transmission. In this study, we used nine SNPs across the Aedes aegypti genome to characterize seasonal population variations of this important dengue vector. Mosquito samples were obtained by ovitraps placed over Botucatu SP from 2005 to 2010. Our data show that, regardless of the large variation in mosquito abundance (deduced from the number of eggs obtained from ovitraps), the effective population size remained stable over the years. These results suggest that Ae. aegypti is able to maintain a sufficiently large active breeding population during the dry season to keep genetic frequencies stable. These results open new perspectives on mosquito survey and control methods. |
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| Keywords: | Aedes aegypti population genetics SNPs dengue |
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