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dc.contributor.authorWannaporn Ittipraserten_US
dc.contributor.authorChristopher Roween_US
dc.contributor.authorCarolyn Pattersonen_US
dc.contributor.authorAndré Milleren_US
dc.contributor.authorNithya Raghavanen_US
dc.contributor.authorSusan Bandonien_US
dc.contributor.authorFred Lewisen_US
dc.contributor.authorMatty Knighten_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherBiomedical Research Institute, Rockvilleen_US
dc.contributor.otherState University of New York Geneseoen_US
dc.identifier.citationMalacologia. Vol.45, No.1 (2003), 101-108en_US
dc.description.abstractRandom amplified polymorphic DNA (RAPD)-PCR analysis was used to assess the extent of genetic diversity within two laboratory-maintained Schistosoma mansoni-resistant stocks of Biomphalaria glabrata (10-R2 and BS-90). Both stocks routinely serve as parents in crosses with susceptible snails for studying the genetics of parasite resistance in the snail host. Genomic DNA was isolated from individual adult 10-R2 and BS-90 snails. From RAPD-PCR conducted with 16 anonymous primers, no polymorphisms were detected within the BS-90 stock, whereas 13 primers revealed considerable intrastrain variations showing different sized bands among the 10-R2 snails. The polymorphisms in the 10-R2 stock allowed us to identify three distinct groups (Types 1, 2 and 3) within these snails. Random screening of individual 10-R2 snails revealed that, of the three distinct types, Types 1 and 2 snails were found at similar frequencies (approximately 45%), whereas 10% fell into the third group (Type 3). The identification of genetic variants within the 10-R2 stock demonstrates the need for careful assessment of the existence of diverse forms in this stock prior to conducting genetic crosses with these snails.en_US
dc.rightsMahidol Universityen_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.titleAssessment of genetic heterogeneity within laboratory-maintained Schistosoma mansoni-resistant stocks of Biomphalaria glabrata snails by RAPD-PCRen_US
Appears in Collections:Scopus 2001-2005

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