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Doctoral Thesis
DOI
https://doi.org/10.11606/T.42.2016.tde-04032016-083314
Document
Author
Full name
Paloma Oliveira Vidal
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2015
Supervisor
Committee
Rocha, Lincoln Suesdek (President)
Fogaça, Andréa Cristina
Ribolla, Paulo Eduardo Martins
Sallum, Maria Anice Mureb
Scheepmaker, Denise Selivon
Title in Portuguese
Caracterização molecular e morfológica de populações de Aedes aegypti (Diptera:Culicidae) no estado de São Paulo.
Keywords in Portuguese
Citocromo oxidase subunidade I
COI
Culicídeos
Microevolução
Microssatélites
Morfometria geométrica alar
Mosquitos
ND4
Nicotinamida adenina dinucleotídeo desidrogenase subunidade 4
Abstract in Portuguese
O Estado de São Paulo apresenta uma das mais altas taxas de infecções por vírus dengue no Mundo, mas apesar dessa situação, poucos são os estudos dirigidos às populações do mosquito Aedes aegypti. O objetivo deste trabalho foi caracterizar geneticamente e morfologicamente populações de Ae. aegypti localizadas em seis municípios (Santos, S.P., Campinas, São Carlos, Catanduva, S.J.R.P.) do Estado de São Paulo durante 2011 e 2012. Todos os marcadores biológicos indicaram estruturação populacional. Os oito loci microssatélites apontaram diferenciação genética moderada entre as populações (Fst= 0.04; p < 0,05) e os níveis de diversidade nucleotídica do gene COI (π =0,0062) e do gene ND4 (π=0,017) foram moderadamente altos. Duas linhagens geneticamente distintas foram encontradas no Estado. Ao longo dos meses que compreenderam o estudo, foram encontradas diferenças morfo-genéticas temporais entre as seis populações analisadas, possivelmente indicativas de microevolução. Os resultados obtidos podem ser úteis para compreendermos a dispersão deste mosquito vetor.
Title in English
Molecular and morphological characterization of Aedes aegypti populations (Diptera: Culicidae) from State of São Paulo.
Keywords in English
COI
Culicidae
Cytochrome oxidase subunit I
Microevolution
Microsatellites
Mosquitoes
ND4
Nicotinamide adenine dinucleotide dehydrogenase subunit 4
Wing geometric morphometrics
Abstract in English
The State of São Paulo displays one of the highest rates of dengue infection in the world, but despite this fact, a few populational studies of Ae. aegypti have been undertaken. The aim of this study was to genetically and morphologically characterize Ae. aegypti populations from six locations in the São Paulo State (Santos, S.P., Campinas, São Carlos, Catanduva, S.J.R.P.) during 2011 and 2012. The phenetic and genetic analyses revealed that populations of Ae. aegypti are structured. Eight microsatellites loci were polymorphic and genetic differentiation among samples was moderate (Fst= 0.04; p < 0.05). Nucleotide diversities of COI (π = 0.0062) and ND4 gene (π = 0.017) were moderately high. Two lineages distinct genetically were found in the State. Over the months comprised by the study, we found the temporal genetics and morphologics differences among the six populations, a possibly indicative of microevolution of mosquitoes. The results of this study may be useful for understand the spread of this vector mosquitoes in the State of São Paulo.
 
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Publishing Date
2016-03-15
 
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