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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Morais, Sirlei Antunes [1] ; de Almeida, Fabio [2, 3] ; Suesdek, Lincoln [2, 3] ; Marrelli, Mauro Toledo [1]
Total Authors: 4
Affiliation:
[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
Total Affiliations: 3
Document type: Journal article
Source: Revista do Instituto de Medicina Tropical de São Paulo; v. 54, n. 6, p. 325-329, NOV-DEC 2012.
Web of Science Citations: 14
Abstract

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)

FAPESP's process: 06/02622-5 - Populational characterization of Culicidae of medical importance: molecular, karyotypic and morphometric aspects
Grantee:Lincoln Suesdek Rocha
Support type: Regular Research Grants
FAPESP's process: 05/50225-2 - Development of alternative methodologies in the control of mosquitoes (Diptera: culicidae) of epidemiological importance: use of method RIDL (release of insects carrying a dominant lethal gene) in the control of Culex quinquefasciatus mosquitoes
Grantee:Mauro Toledo Marrelli
Support type: Research Grants - Young Investigators Grants