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Novel NSP4 genotype in a camel G10P[15] rotavirus strain
Hajnalka Papp1, Laila Zaar Al-Mutairi, Wassim Chehadeh
1Hungarian Academy of Sciences, Institute for Veterinary Medical Research, Budapest, Hungary.
Acta Microbiologica Et Immunologica Hungarica
|September 18, 2012
Summary
A novel camel rotavirus strain from Kuwait shows genetic diversity. Phylogenetic analysis reveals common evolutionary links with ruminant rotaviruses, highlighting the NSP4 gene
Area of Science:
- Veterinary Virology
- Molecular Epidemiology
Background:
- Rotaviruses are a major cause of gastroenteritis in animals.
- Camel rotaviruses are understudied, limiting understanding of their genetic diversity and evolution.
Purpose of the Study:
- To characterize a Kuwaiti camel rotavirus strain (RVA/Camel-wt/KUW/s21/2010/G10P[15]) using sequencing and phylogenetic analysis.
- To investigate the genetic relatedness of this strain to other known rotaviruses.
Main Methods:
- Whole genome sequencing of the camel rotavirus strain.
- Phylogenetic analysis of viral genes to determine sequence similarities and evolutionary relationships.
Main Results:
- The camel rotavirus strain exhibited high sequence similarities in several genes (VP2, NSP2, NSP5, NSP3) to ovine and bovine strains, and in VP1 to porcine strains.
- Moderate sequence similarities were observed for VP4, VP6, and VP7 genes with ruminant rotaviruses.
- The NSP4 gene displayed limited identity to other rotaviruses, leading to its designation as a novel genotype, E15.
Conclusions:
- This study reveals significant genetic diversity within the outer capsid and backbone genes of an Old-World camelid rotavirus.
- The findings suggest common evolutionary origins between camel rotaviruses and strains found in other ruminants.
- The identification of a novel NSP4 genotype (E15) expands the known genetic diversity of rotaviruses.
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