Format

Send to:

Choose Destination
See comment in PubMed Commons below
Mol Phylogenet Evol. 2010 Oct;57(1):144-51. doi: 10.1016/j.ympev.2010.05.019. Epub 2010 May 23.

Occurrence of Biomphalaria cousini (Mollusca: Gastropoda) in Brazil and its susceptibility to Schistosoma mansoni (Platyhelminths: Trematoda).

Author information

  • 1Laboratório de Helmintologia e Malacologia Médica, Centro de Pesquisas René Rachou/Fiocruz, Belo Horizonte, Minas Gerais, Brazil. tatianateo@cpqrr.fiocruz.br

Abstract

In Brazil, there are three intermediate snail vectors and two potential hosts of Schistosoma mansoni. Previous studies showed three variant molecular profiles to B. amazonica and evidenced intraspecific variations using sequence data. In this context, the aim of this study was to verify whether such differences would correspond to either B. amazonica or B. cousini. The snails were morphologically identified; PCR-RFLP and sequencing were carried out. Besides, B. cousini were submitted to susceptibility experiments to S. mansoni. Noteworthy, morphological data of Brazilian specimens predominantly showed the morphology described for B. amazonica. Nevertheless, PCR-RFLP results exhibited three variant molecular profiles for the specimens previously identified as B. amazonica and the phylogenetic analyses showed two groups one to B. amazonica and another to B. cousini. Furthermore, B. cousini showed to be susceptible to S. mansoni. These results confirm the occurrence of B. cousini in Brazil and points to the risk of introduction of schistosomiasis mansoni into new areas.

Copyright 2010 Elsevier Inc. All rights reserved.

PMID:
20580934
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk