Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/201227
Type: Artigo de periódico
Title: Temporal Genetic Structure Of Major Dengue Vector Aedes Aegypti From Manaus, Amazonas, Brazil.
Author: Mendonça, Barbara Alessandra Alves
de Sousa, Adna Cristina Barbosa
de Souza, Anete Pereira
Scarpassa, Vera Margarete
Abstract: In recent years, high levels of Aedes aegypti infestation and several dengue outbreaks with fatal outcome cases have been reported in Manaus, State of Amazonas, Brazil. This situation made it important to understand the genetic structure and gene flow patterns among the populations of this vector in Manaus, vital pieces of information for their management and development of new control strategies. In this study, we used nine microsatellite loci to examine the effect of seasonality on the genetic structure and gene flow patterns in Ae. aegypti populations from four urban neighborhoods of Manaus, collected during the two main rainy and dry seasons. All loci were polymorphic in the eight samples from the two seasons, with a total of 41 alleles. The genetic structure analyses of the samples from the rainy season revealed genetic homogeneity and extensive gene flow, a result consistent with the abundance of breeding sites for this vector. However, the samples from the dry season were significantly structured, due to a reduction of Ne in two (Praça 14 de Janeiro and Cidade Nova) of the four samples analyzed, and this was the primary factor influencing structure during the dry season. Genetic bottleneck analyses suggested that the Ae. aegypti populations from Manaus are being maintained continuously throughout the year, with seasonal reduction rather than severe bottleneck or extinction, corroborating previous reports. These findings are of extremely great importance for designing new dengue control strategies in Manaus.
Subject: Aedes
Animals
Brazil
Dengue
Gene Flow
Genetic Structures
Genetic Variation
Humans
Insect Vectors
Microsatellite Repeats
Seasons
Urban Population
Brazil
Dengue Vector
Gene Flow
Microsatellites
Molecular Entomology
Population Genetics
Rights: fechado
Identifier DOI: 10.1016/j.actatropica.2014.02.014
Address: http://www.ncbi.nlm.nih.gov/pubmed/24631342
Date Issue: 2014
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

Files in This Item:
File SizeFormat 
pmed_24631342.pdf877.32 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.