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Type: Artigo de periódico
Title: [genetic Selection Of Biomphalaria Glabrata And Biomphalaria Tenagophila Seeking The Alteration Of The Susceptibility And Resistance To Schistosoma Mansoni].
Author: Zuim, Nádia Regina Borim
Zanotti-Magalhães, Eliana Maria
Magalhães, Luiz Augusto
Linhares, Arício Xavier
Abstract: Generations of Biomphalaria glabrata and Biomphalaria tenagophila selected genetically for resistance and susceptibility to Schistosoma mansoni of strains BH and SJ were used in a study of the trematode adaptation to the intermediate host. Descendants of the planorbids were obtained by self-fertilization of the mollusks that became susceptible or resistant after exposure to the miracidia of Schistosoma mansoni. For Biomphalaria glabrata they were obtained from the following generations: Parental, F1S (Susceptible), F1R (Resistant), F2S and F2R. For Biomphalaria tenagophila the studied generations were: Parental, F1S, F1R and F50S. The comparison of the infection rates presented by the different generations showed that the increase in susceptibility was more easily obtained in both species. The difficulty in increasing the resistance of the mollusks to Schistosoma mansoni has important epidemiologic implications.
Subject: Animals
Disease Vectors
Host-parasite Interactions
Schistosoma Mansoni
Selection, Genetic
Rights: aberto
Identifier DOI: /S0037-86822005000500004
Date Issue: -1-Uns- -1
Appears in Collections:Unicamp - Artigos e Outros Documentos

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