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
Dans Anglais
| LILACS
| ID: lil-597264
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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Variation génétique
/
Analyse de séquence d'ADN
/
Gènes d'insecte
/
Vecteurs insectes
/
Anopheles
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
2011
Type:
Article
/
descriptif de projet
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Instituto Oswaldo Cruz-Fiocruz/BR
/
Universidade Federal do Rio de Janeiro/BR
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