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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 106, No. s1, 2011, pp. 218-222
Bioline Code: oc11160
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 106, No. s1, 2011, pp. 218-222

 en Molecular divergence in the timeless and cpr genes among three sympatric cryptic species of the Anopheles triannulatus check for this species in other resources complex
Silva-do-Nascimento, Teresa Fernandes; Pitaluga, Luisa Damazio Rona; Peixoto, Alexandre Afranio & Lourenço-de-Oliveira, Ricardo

Abstract

Anopheles triannulatus check for this species in other resources s.l. is a malaria vector with a wide geographic distribution, ranging from Argentina-Nicaragua and Trinidad. Here we analysed sequences of two genes, timeless and cpr, to assess the genetic variability and divergence among three sympatric cryptic species of this complex from Salobra, central-western Brazil. The timeless gene sequences did not conclusively differentiate Anopheles halophylus check for this species in other resources and An. triannulatus species "C". However, a partial separation has been observed between these species and An. triannulatus s.s. Importantly, the analysis of the cpr gene sequences revealed fixed differences, no shared polymorphisms and considerable genetic differentiation among the three species of the An. triannulatus complex. The results confirm that An. triannulatus s.s., An. halophylus and An. triannulatus species C are distinct taxa, with the latter two likely representing a more recent speciation event.

Keywords
Anopheles triannulatus, Anopheles halophylus, cpr gene, timeless gene, species complex

 
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