Abstract
Molecular epidemiology is one of the most rapidly developing research area. In the light of past and modern technologies it has gained number of typing methods based on molecular biology techniques. In this report, the subspecies differentiation of Francisella tularensis and genotyping of strains isolated in Poland and other geographic locations were investigated using real-time PCR and multispacer typing (MST) methods respectively. In total, 49 strains of F.tularensis included 15 strains from Poland, for subspecies differentiation the real-time PCR method was applied. For molecular typing using MST method four intergenic spacers (IS) were sequenced and compared with those previously described and deposited in GenBank (NCBI). Phylogenetic testing was performed using with the UPGMA model using MEGA6 software. The real-time PCR enables to distinguish five strains belonged to type A and 44 to type B among deposited F.tularensis strains. The MST revealed previously described genotypes, as well as 23 new genotypes were detected. The use of real-time PCR and MST method are valuable in the analysis of F.tularensis. SIGNIFICANCE AND IMPACT OF THE STUDY: This study demonstrate convenient molecular tools (real-time PCR and multispacer typing) for Francisella tularensis detection, differentiation and genotyping which can be applied for molecular epidemiological studies and providing useful information for scientific research and during natural tularaemia outbreaks.
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