Animal Husbandry and Feed Science ›› 2020, Vol. 41 ›› Issue (1): 116-120.doi: 10.12160/j.issn.1672-5190.2020.01.023

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Identification and Phylogenetic Analysis of Ovine Theileria Jilin Strains

TIAN Wan-nian, XU Xue-xue, ZHANG Jia-juan   

  1. College of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin 132101, China
  • Received:2019-12-06 Online:2020-01-30 Published:2020-03-05

Abstract: In order to determine the dominantly prevalent species of ovine Theileria in Yanbian region of Jilin Province, the blood smear microscopy and PCR assay were used to identify the ovine Theileria from the clinical samples, and the phylogenetical analysis of the isolates was carried out subsequently. Blood smear microscopy revealed that round worms were present in the red blood cells of the blood smear. Bioinformatical analysis of the MPSP gene of ovine Theileria Jilin strains demonstrated that the protein encoded by MPSP contains 3 N-glycosylation sites, 14 potential epitopes and a signal peptide structure. The established phylogenetic tree showed that the three clinical isolates in this study were 100% homologous to Theileria luwenshunli (GQ281044) and had a close relationship, indicating that the isolated ovine Theileria were Theileria luwenshuni. The prevalence of Theileria luwenshuni in Jilin Province was observed in this study.

Key words: ovine Theileria, MPSP gene, bioinformatics, phylogenetic tree

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