ArticleVeterinary research forum : an international quarterly journal2022
Molecular identification and genotyping of
Article in Veterinary research forum : an international quarterly journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Comprehensive diagnostic approaches to feline toxoplasmosis: Bridging traditional methods and emerging technologies.Virulence · 2025Review
- Molecular identification, risk factors' assessment and phylogenetic analysis of Toxoplasma gondii in goats from Malakand Division, Khyber Pakhtunkhwa, Pakistan.Veterinary research communications · 2025Article
- Molecular prevalence and genetic diversity ofOpen veterinary journal · 2023Article
- Frequency ofIranian journal of parasitologyArticle
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3 authors.
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Abstract
Toxoplasmosis, a foodborne disease, in human occurs commonly after the ingestion of tissue cysts via the raw and/or undercooked meat of different infected intermediate hosts such as sheep and cattle. The current study aimed to detect the genetic structure of Toxoplasma gondii isolated from various organs of sheep and cattle in the north of Iran. Conventional PCR was carried out by B1 and REP-529 genes of T. gondii. Nested and RFLP-PCR were performed for all positive samples using SAG2 and GRA6 genetic markers. Amplicons from second round of nested-PCR were sequenced and analyzed with NCBI database. Among of 179 examined samples, 38(21.20%) were positive. The highest of positive cases were found in kidney (28.60%). PCR-RFLP of SAG2 and GRA6 genes demonstrated the alleles of clonal type III in the all of isolates. Sequence analysis of the amplicons revealed the alleles of clonal type III and atypical isolates (Tg-67, Tg-100 and Tg-106). Phylogenetic analyses showed separate clade for the atypical isolates from others in the present study and the reference strains clades. In conclusion, the genetic characterization of T. gondii isolates from sheep and cattle showed high genetic diversity compared with standard type I, II and III genotypes. These results support the hypothesis of the existence of polymorphic and overlapping strains within livestock in Iran. It also suggested the necessity of increased genotyping and sampling efforts to accurately estimate T. gondii intra specific genetic diversity.
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