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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
Morais, Sirlei Antunes [1] ; de Almeida, Fabio [2, 3] ; Suesdek, Lincoln [2, 3] ; Marrelli, Mauro Toledo [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Fac Saude Publ, Dept Epidemiol, BR-01246904 Sao Paulo - Brazil
[2] Inst Butantan, Secao Parasitol, Sao Paulo - Brazil
[3] Univ Sao Paulo, Inst Ciencias Biomed, BR-01246904 Sao Paulo - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Revista do Instituto de Medicina Tropical de São Paulo; v. 54, n. 6, p. 325-329, NOV-DEC 2012.
Citações Web of Science: 14
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. (AU)

Processo FAPESP: 06/02622-5 - Caracterização populacional de Culicidae de interesse médico: aspectos moleculares, cariotípicos e morfométricos
Beneficiário:Lincoln Suesdek Rocha
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 05/50225-2 - Desenvolvimento de metodologias alternativas no controle de mosquitos (Diptera: Culicidae) de importância epidemiológica: uso do método ridl (liberação de insetos carregando um gene letal dominante) [... ]
Beneficiário:Mauro Toledo Marrelli
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores