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Updated: Jul 27, 2025
09:36
Unbiased Deep Sequencing of RNA Viruses from Clinical Samples
Published on: July 2, 2016
17.1K
Transcriptome mining of RNA viruses (family
Biorxiv : the Preprint Server for Biology
|June 9, 2023
Summary
New research reveals novel RNA viruses within Eimeria protozoa, important chicken and rabbit pathogens. These findings suggest these viruses may represent a new genus of Eimeria viruses.
Area of Science:
- Virology
- Parasitology
- Molecular Biology
Background:
- Eimeria protozoa are significant veterinary pathogens causing coccidiosis in various vertebrates, notably poultry and rabbits.
- Certain Eimeria species harbor small RNA viruses belonging to the Totiviridae family, impacting host biology and disease.
- Understanding these viral coinfections is crucial for controlling Eimeria-related diseases and economic losses.
Approach:
- The study involved sequencing two novel Totiviridae viruses found within Eimeria protozoa.
- One virus sequence was from Eimeria necatrix, a key chicken pathogen, providing its first complete protein-coding sequence.
- The second virus sequence was from Eimeria stiedai, a significant rabbit pathogen.
Key Points:
- The complete protein-coding sequence of a virus from Eimeria necatrix was determined for the first time.
- A novel virus sequence was also identified from Eimeria stiedai.
- Comparative sequence analysis of these and previously identified viruses offered new insights into their evolution and characteristics.
Conclusions:
- Phylogenetic analyses indicate that these Eimeria-associated viruses form a distinct cluster.
- The data strongly suggest these viruses warrant classification as a new genus within the Totiviridae family.
- This classification deepens our understanding of viral diversity within parasitic protozoa.
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