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1 May 2003 Use of Random Amplified Polymorphic DNA (RAPD) Analysis for the Identification of Giardia intestinalis Subtypes and Phylogenetic Tree Construction
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Abstract

A comparison of random amplified polymorphic DNA (RAPD) was used to investigate genetic polymorphisms among 25 isolates of Giardia intestinalis and to assess the utility of RAPD for subtype detection and genealogical analysis. Using data obtained for six human and 19 animal-derived isolates in polymerase chain reactions using 13 different primers, phylogenetic trees were constructed and bootstrap values computed by the program FreeTree. Three major clades were distinguished, corresponding to previously defined genetic assemblages A, B, and E. The purported specificity of assemblage E genotypes for artiodactyl hosts was supported. Assemblages A and B showed wide host spectra, including human and animal hosts. No correlation was found between the genotype of analyzed isolates and the presence or absence of the double-stranded RNA Giardiavirus. The results indicate that RAPD data provide reliable genetic information that can be used for both “fingerprinting” and genealogical purposes.

JITKA ŠEDINOVÁ, JAROSLAV FLEGR, PETER L. EY, and JAROSLAV KULDA "Use of Random Amplified Polymorphic DNA (RAPD) Analysis for the Identification of Giardia intestinalis Subtypes and Phylogenetic Tree Construction," The Journal of Eukaryotic Microbiology 50(3), 198-203, (1 May 2003). https://doi.org/10.1111/j.1550-7408.2003.tb00117.x
Received: 24 June 2002; Accepted: 8 March 2003; Published: 1 May 2003
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