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Type: Artigo de periódico
Title: Genetic markers between Biomphalaria glabrata snails susceptible and resistant to Schistosoma mansoni infection
Author: Spada, RGM
Silva, D da
Abdel-Hamid, A-Z
Sobral-Hamaguchi, SS
Zuim, NRB
Zanotti-Magalhães, EM
Magalhães, LA
Ribeiro-Paes, JT
Abstract: The analysis of the genetic variability related to susceptibility to Schistosoma mansoni infection in the vector of the genus Biomphalaria is important in terms of a better understanding of the epidemiology of schistosomiasis itself, the possible pathological implications of this interaction in vertebrate hosts, and the formulation of new strategies and approaches for disease control. In the present study, the genetic variability of B. glabrata strains found to be resistant or susceptible to S. mansoni infection was investigated using DNA amplification by random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR). The amplification products were analyzed on 8% polyacrylamide gel and stained with silver. We selected 10 primers, since they have previously been useful to detect polymorphism among B. glabrata and/or B. tenagophila. The results showed polymorphisms with 5 primers. Polymorphic bands observed only in the susceptible strain. The RAPD-PCR methodology represents an adequate approach for the analysis of genetic polymorphisms. The understanding of the genetic polymorphisms associated to resistance may contribute to the future identification of genomic sequences related to the resistance/susceptibility of Biomphalaria to the larval forms of S. mansoni and to the development of new strategies for the control of schistosomiasis.
Subject: Schistosoma
genetic variability
random amplified polymorphic DNA
polymerase chain reaction
Editor: Instituto Oswaldo Cruz, Ministério da Saúde
Rights: aberto
Identifier DOI: 10.1590/S0074-02762002000900012
Date Issue: 1-Oct-2002
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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