title: Phylogenetic relationships within the oliveirai complex (Hemiptera:Reduviidae:Triatominae).
abstract: The oliveirai complex is actually composed of nine related species of Triatominae that occur in the Pantanal ecosystem of Mato Grosso, Brazil. In order to confirm their specific status and infer their phylogenetic relationships, we performed a genetic and morphometric comparison concerning seven of the nine species of the complex. Isoenzyme analysis provided broadly similar phylogenetic information to that derived from discriminant analysis of size-free variables. The derived trees reveal two main species groups, one composed of three closed species (T. jurbergi, T. matogrossensis and T. vandae), and another one subdivided into two different pairs, the T. guazu-T. williami pair and the T. klugi-T. oliveirai pair. The results call the specific status of T. guazu and T. williami into question, support the possibility that the other analyzed species represent distinct taxa and query the existence of the oliveirai complex.
authors.affiliation: Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Departamento de Entomologia, Instituto Oswaldo Cruz, Av. Brasil 4365, 21045-900 Rio de Janeiro, RJ, Brazil. noireauf@ioc.fiocruz.br
authors.forename: François
authors.initials: F
authors.lastname: Noireau
authors.forename: Silvia Menezes
authors.initials: SM
authors.lastname: dos Santos
authors.forename: Marcia
authors.initials: M
authors.lastname: Gumiel
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Dujardin
authors.forename: Marcos
authors.initials: M
authors.lastname: dos Santos Soares
authors.forename: Rodolfo Ubaldo
authors.initials: RU
authors.lastname: Carcavallo
authors.forename: Cleber
authors.initials: C
authors.lastname: Galvão
authors.forename: José
authors.initials: J
authors.lastname: Jurberg
mesh_terms: D000818:Animals; D001938:Brazil; D007527:Isoenzymes / Q000235:genetics; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D014225:Triatominae / Q000145:classification / Q000201:enzymology / Q000235:genetics*
chemical_list: D007527:Isoenzymes