LOW GENETIC DIVERSITY IN Wolbachia-INFECTED Culex quinquefasciatus (DIPTERA: CULICIDAE) FROM BRAZIL AND ARGENTINA


Autoria(s): Morais, Sirlei Antunes; de Almeida, Fabio; Suesdek, Lincoln; Marrelli, Mauro Toledo
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

21/10/2013

21/10/2013

2012

Resumo

Culex quinquefasciatus is a vector of human pathogens, including filarial nematodes and several viruses. Although its epidemiological relevance is known to vary across geographical regions, an understanding of its population genetic structure is still incipient. In light of this, we evaluated the genetic diversity of Cx. quinquefasciatus and Cx. pipiens x Cx. quinquefasciatus hybrids collected from nine localities in Brazil and one site in Argentina. We used mitochondrial genes cox1 and nd4, along with the coxA and wsp genes of the maternally-inherited Wolbachia endosymbiont. The nd4 fragment was invariant between samples, whilst cox1 exhibited four haplotypes that separated two types of Cx. quinquefasciatus, one clustered in southern Brazil. Low sequence diversity was generally observed, being discussed. Both Brazilian and Argentinian mosquitoes were infected with a single Wolbachia strain. As reported in previous studies with these populations, cox1 and nd4 diversity is not congruent with the population structure revealed by nuclear markers or alar morphology. Future Cx. quinquefasciatus research should, if possible, evaluate mtDNA diversity in light of other markers.

FAPESP [05/50225-2, 06/02622-5]

FAPESP

Identificador

REVISTA DO INSTITUTO DE MEDICINA TROPICAL DE SAO PAULO, SAO PAULO, v. 54, n. 6, supl. 1, Part 1-2, pp. 325-329, NOV-DEC, 2012

0036-4665

http://www.producao.usp.br/handle/BDPI/35185

10.1590/S0036-46652012000600007 

http://dx.doi.org/10.1590/S0036-46652012000600007 

Idioma(s)

eng

Publicador

INST MEDICINA TROPICAL SAO PAULO

SAO PAULO

Relação

REVISTA DO INSTITUTO DE MEDICINA TROPICAL DE SAO PAULO

Direitos

openAccess

Copyright INST MEDICINA TROPICAL SAO PAULO

Palavras-Chave #CULEX QUINQUEFASCIATUS #GENETIC DIVERSITY #MITOCHONDRIAL MARKERS #WOLBACHIA #MULTIPLE INTRODUCTIONS #INSECTICIDE RESISTANCE #PIPIENS COMPLEX #AEDES-AEGYPTI #OXIDASE I #MOSQUITO #POPULATIONS #VECTOR #VIRUS #CALIFORNIA #TROPICAL MEDICINE
Tipo

article

original article

publishedVersion