Evolutionary Relationships of the
Triatoma matogrossensis Subcomplex,the Endemic
Triatoma in Central-Western Brazil,Based on Mitochondrial DNA Sequences |
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Authors: | Sueli Gardim Cláudia S. Rocha Carlos E. Almeida Daniela M. Takiya Marco T. A. da Silva Daniela L. Ambrósio Regina M. B. Cicarelli Jo?o A. da Rosa |
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Affiliation: | Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, Brazil; Department of Zoology, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Physics Institute of São Carlos, University of São Paulo (USP), São Carlos, Brazil; Department of Genetics and Developmental Biology, University of Connecticut Health Center, Farmington, Connecticut |
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Abstract: | The phylogenetic relationships among species of Triatoma matogrossensis subcomplex (T. baratai, T. guazu, T. matogrossensis, T. sordida, T. vandae, and T. williami) was addressed by using fragments of cytochrome oxidase I (COI), 16S rDNA (16S), and cytochrome b (Cytb) through Bayesian and parsimony analyses. We did not recover a monophyletic T. matogrossensis subcomplex, and their members were found clustered in three strongly supported clades, as follows: i) T. jurbergi + T. matogrossensis + T. vandae + T. garciabesi + T. sordida; ii) with T. guasayana as the sister group of clade (i); and iii) T. williami + T. guazu, however not closely related to the clade formed by the previously mentioned species. The other two endemic species from Central-Western Brazil, T. baratai and T. costalimai, were not recovered with strong clade support as related to other members of this subcomplex. Results call for a further revision in the classification of the subcomplexes within the genus Triatoma. |
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