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Am. J. Trop. Med. Hyg., 81(5), 2009, pp. 858-864
doi:10.4269/ajtmh.2009.08-0664;
Copyright © 2009 by The American Society of Tropical Medicine and Hygiene

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Phylogeny of Triatoma sherlocki (Hemiptera: Reduviidae: Triatominae) Inferred from Two Mitochondrial Genes Suggests Its Location Within the Triatoma brasiliensis Complex

Vagner J. Mendonça, Marco T. A. da Silva, Renato F. de Araújo, Joaquim Martins Júnior, Maurício Bacci Júnior, Carlos Eduardo Almeida, Jane Costa, Márcia A. S. Graminha, Regina M. B. Cicarelli, AND João A. da Rosa*
Departamento de Parasitologia, Instituto de Biologia–UNICAMP, Campinas, SP, Brazil; Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas–UNESP Araraquara, SP, Brazil; Secretaria de Saúde do Estado da Bahia, SESAB, Salvador, BA, Brazil; Centro de Estudos de Insetos Sociais, Instituto de Biociências–UNESP Rio Claro, SP, Brazil; Laboratório de Biodiversidade Entomológica, Instituto Oswaldo Cruz–Fiocruz, Rio de Janeiro, RJ, Brazil; Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas–UNESP Araraquara, SP, Brazil

The phylogenetic position of Triatoma sherlocki within triatomines group was inferred by analyzing mtDNA fragments of Cyt B and 16S ribosomal RNA by using maximum parsimony and Bayesian analysis. Despite being differentiated from members of the T. brasiliensis complex on morphologic grounds, molecular phylogenetic analysis suggests T. sherlocki is a member of this complex; moreover, it was placed as a sister species of T. melanica. These suggestions were supported by robust credibility rates. Hence, we show evidence for the paraphyletic group of the "Triatoma brasiliensis complex," which should be composed of T. brasiliensis brasiliensis, T. brasiliensis macromelasoma, T. juazeirensis, T. melanica, and T. sherlocki.

Received December 18, 2008. Accepted for publication May 9, 2009.

Acknowledgments: The authors thank João Luis Molina Gil and João Mauricio Nóbrega da Silva Filho who maintained the Triatominae colonies, Rui Cerqueira who pioneered the collection and study of T. sherlocki, José Clóvis for critical suggestions, and Timothy J. C. Roberts for suggestions and proofreading of the English text.

Financial support: This work was supported by Fundação para o Desenvolvimento da UNESP (FUNDUNESP, Process 066/06) and Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP, Process 06/02778-5 and 05/52608-6).

* Address correspondence to João A. da Rosa, Rod. Araraquara-Jaú, Km 1, Faculdade de Ciências Farmacêuticas/UNESP Araraquara, Departamento de Ciências Biológicas, Laboratório de Parasitologia, CEP 14801-902 Araraquara/SP, Brazil. E-mail: rosaja{at}fcfar.unesp.br

Authors’ addresses: Vagner J. Mendonça, Marco T. A. da Silva, Márcia A. S. Graminha, Regina M. B. Cicarelli, and João A. da Rosa, Rod. Araraquara-Jaú, Km 1, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, CEP 14801-902, Araraquara, São Paulo, Brazil, Tel: 55-16-33016943, E-mails: v041137{at}dac.unicamp.br, tulio{at}fcfar.unesp.br, graminha{at}fcfar.unesp.br, cicarell{at}fcfar.unesp.br, and rosaja{at}fcfar.unesp.br. Renato F. de Araújo, Secretaria de Saúde do Estado da Bahia, CEP 41750-300, Salvador, Bahia, Brazil, Tel: 55-71-32705821, E-mail: birdeagle01{at}yahoo.com.br. Joaquim Martins Júnior and Maurício Bacci Júnior, Avenida 24-A, 1515, Bela Vista, Centro de Estudos de Insetos Sociais, Universidade Estadual Paulista, CEP 13.506-900, Rio Claro, São Paulo, Brazil, Tel: 55-19-35264160, E-mails: redskull_br{at}yahoo.com.br and mbacci{at}rc.unesp.br. Carlos Eduardo Almeida and Jane Costa, Instituto Oswaldo Cruz, Fiocruz, Pavilhão Mourisco, Room 202, Av. Brasil 4365, 21045-900 Rio de Janeiro, RJ, Brazil, Fax: 55-21-2573-7276, E-mails: almeidace{at}ioc.fiocruz.br and jcosta{at}ioc.fiocruz.br.






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