Molecular divergence in the timeless and cpr genes among three sympatric cryptic species of the Anopheles triannulatus complex
Mem. Inst. Oswaldo Cruz
; 106(supl.1): 218-222, Aug. 2011. ilus, tab
Article
in English
| LILACS
| ID: lil-597264
Responsible library:
BR1.1
ABSTRACT
Anopheles triannulatus 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 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.
Full text:
Available
Collection:
International databases
Health context:
Neglected Diseases
Health problem:
Malaria
Database:
LILACS
Main subject:
Genetic Variation
/
Sequence Analysis, DNA
/
Genes, Insect
/
Insect Vectors
/
Anopheles
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2011
Document type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
Instituto Oswaldo Cruz-Fiocruz/BR
/
Universidade Federal do Rio de Janeiro/BR