Molecular characterization and phylogenetic study of Theileria sp. parasites detected in cattle from the Moscow region of Russia
2022
Kovalchuk, Svetlana N.
Theileriae are obligate intracellular protozoan parasites which are transmitted by ixodid ticks and infect both wild and domestic ruminants worldwide. Theileriosis causes significant economic losses to the livestock industry in many countries due to the high morbidity and mortality in cattle herds. In Russia, information concerning prevalence of Theileria spp. in cattle is very limited. This study reports on molecular characterization and phylogenetic analysis of Theileria spp. parasites detected in cattle from the Moscow region of Russia. Phylogenetic analysis based on the full length 18S rRNA gene revealed that the Russian Theileria parasites belong to the Theileria orientalis / Theileria buffeli / Theileria sergenti group and share a common genotype with T. buffeli Marula from Kenya, T. buffeli isolates from Japan and South Korea, T. orientalis isolate from Australia and T. sergenti isolate from Japan, which belong to the pathogenic Chitose genotype.
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