Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/11893
Title: Cross-mating experiments detect reproductive compatibility between Triatoma sherlocki and other members of the Triatoma brasiliensis species complex
Authors: Correia, Nathália
Almeida, Carlos E.
Neiva, Vanessa Lima
Gumiel, Márcia
Dornak, L. Lynnette
Lima, Marli M.
Medeiros, Lívia M. O.
Mendonça, Vagner J.
Rosa, João A. da
Costa, Jane
Affilliation: Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biodiversidade Entomológica. Rio de Janeiro, RJ, Brasil.
Universidade do Estado de São Paulo - UNESP. Faculdade de Ciências Farmacêuticas. Departamento de Ciências Biológicas. Araraquara, SP, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biodiversidade Entomológica. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biodiversidade Entomológica. Rio de Janeiro, RJ, Brasil.
University of Idaho. Departament of Fisheries and Wildlife Sciences. Moscow, USA.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Eco-epidemiologia em Doença de Chagas. Rio de Janeiro, RJ, Brasil.
Universidade do Estado de São Paulo - UNESP. Faculdade de Ciências Farmacêuticas. Departamento de Ciências Biológicas. Araraquara, SP, Brasil.
Universidade do Estado de São Paulo - UNESP. Faculdade de Ciências Farmacêuticas. Departamento de Ciências Biológicas. Araraquara, SP, Brasil.
Universidade do Estado de São Paulo - UNESP. Faculdade de Ciências Farmacêuticas. Departamento de Ciências Biológicas. Araraquara, SP, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biodiversidade Entomológica. Rio de Janeiro, RJ, Brasil.
Abstract: Phylogenetic approaches based on mitochondrial DNA variation (fragments of Cyt B and 16S ribosomal RNA) have revealed Triatoma sherlocki as the most recent species addition to the Triatoma brasiliensis species complex; a monophyletic group which includes T. brasiliensis, Triatoma melanica, and Triatoma juazeirensis. T. sherlocki is the most differentiated among all species of this complex: it is unable to fly, possesses longer legs than the other members, and has reddish tonality in some parts of its exochorion. We question whether these species are reproductively compatible because of this pronounced morphological differentiation, and therefore, we present a series of cross breeding experiments that test compatibility between T. sherlocki and other members of the T. brasiliensis complex. We extended our analyses to include crosses between T. sherlocki and Triatoma lenti, because the latter has been suggested as a possible member of this complex. T. sherlocki male × T. lenti female pairs failed to produce hybrids. All other crosses of T. sherlocki and members of T. brasiliensis species complex, as well as backcrosses, produced viable offspring through the third generation. This study stresses the importance of searching for the features that may isolate members of the T. brasiliensis species complex.
Keywords: Hybridization
Reproductive compatibility
Species complex
Chagas disease
Triatominae
DeCS: Triatominae
Doença de Chagas
Hibridização
Issue Date: 2013
Publisher: Elsevier
Citation: CORREIA, Nathália; et al. Cross-mating experiments detect reproductive compatibility between Triatoma sherlocki and other members of the Triatoma brasiliensis species complex. Acta tropica, v.128, p.162-167, 2013.
DOI: 10.1016/j.actatropica.2013.06.019
ISSN: 0001-706X
Copyright: restricted access
Appears in Collections:IOC - Artigos de Periódicos

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