First molecular survey of piroplasm species in cattle from Kyrgyzstan
2019
Aktaş, Münir | Kısadere, İhsan | Özübek, Sezayi | Cihan, Hüseyin | Salıkov, Ruslan | Cirak, Veli Yılgor
Bovine piroplasmosis is a tick-borne disease caused by apicomplexan hemoparasites of the genera Theileria and Babesia. This study was carried out to assess the presence and frequency of piroplasm parasites in apparently healthy cattle in Kyrgyzstan. A total of 454 blood samples were collected from animals of various ages in eight villages located in the Chu valley and around the Lake Issyk Kul. The hypervariable V4 region of the 18S ribosomal RNA (rRNA) gene was amplified with a set of primers specific targeting members of the genera Theileria and Babesia. Amplified PCR products were hybridized onto a membrane to which generic and species-specific oligonucleotide probes were covalently linked. The results revealed the presence of three piroplasm species (Theileria orientalis, Babesia major, Theileria annulata). Theileria orientalis was the most prevalent species (32.8%; CI 28.5–37.3). Babesia major was the only species of Babesia found in any of the samples (1.3%; CI 0.5–2.8). The co-existence of Theileria annulata and T. orientalis was detected in nine animals (1.9%; CI 0.9–3.7). BLAST search revealed that the Theileria sequences shared 100% identity with the recently reported sequences for T. buffeli and T. annulata. The sequence of B. major was also 100% identical to an existing B. major sequence. This molecular survey provides important epidemiological data for control of bovine piroplasmosis caused by T. orientalis, B. major, and T. annulata in Kyrgyzstan.
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