List of issues > Series «Biology. Ecology». 2014. Vol. 7
Members of the Genus Babesia, their Occurence, Genetic Diversity and Significance in Human and Animal Pathology
Author(s)
M. O. Shchepina, O. O. Fedulina, I. V. Kozlova, O.V. Suntsova, V. A. Rar, E. K. Doroshchenko, О. V. Lisak
Abstract
The article provides the analysis of the scientific literature on a problem of human and animal babesiosis and presents the results of revealing Babesia infections in Irkutsk region. DNA of babesia was found in ticks of two species (I. persulcatus, H. сoncinna) in the territory of three districts of Irkutsk region: Ekhirit-Bulagatsky, Irkutsky, and Shelekhovsky. D. nuttalli does not have babesia DNA. Nucleotide sequence analysis of 18S rRNA gene (approximately 1,220 bp) was carried out in the 15 samples of babesia. The results showed that babesia sequences found in ticks of H. сoncinna and I. persulcatus are genetically similar to a sheep pathogen of Babesia crassa and B. motasi. Also I. persulcatus ticks have nucleotide sequences that are genetically similar to B. microti Us-type and B. venatorum, pathogenic for the human. In the Shelekhovsky district the sample whose nucleotide sequences significantly differ from all known (less than 95 % of homology) was found.
Keywords
babesiosis, genetic variability, natural focus
UDC
577.2.01