Genomic characteristics of classical swine fever virus strains of bovine origin according to primary and secondary sequence-structure analysis.
Cattle
Classical swine fever virus
Pestivirus
Secondary structure
Journal
Open veterinary journal
ISSN: 2218-6050
Titre abrégé: Open Vet J
Pays: Libya
ID NLM: 101653182
Informations de publication
Date de publication:
04 2020
04 2020
Historique:
received:
29
12
2019
accepted:
04
03
2020
entrez:
20
5
2020
pubmed:
20
5
2020
medline:
10
4
2021
Statut:
ppublish
Résumé
Classical swine fever virus (CSFV), species member of the family The secondary structures of the internal ribosome entry site in the 5' untranslated region (UTR) were used for the genomic characterization of bovine strains. Sequences have been compared to the representative CSFV strains isolated from pigs, vaccines, and contaminants from porcine cell lines and an ovine strain isolated in Spain. The observed sequences from cattle showed a genetic relatedness with live-attenuated vaccine strains used in pigs. Sequence characteristics of the Chinese strain S171 are genetically distant from the previously reported CSFV genotypes, suggesting a new outgroup in the species, described for the first time, and named CSFV-d. Other Chinese strains were genetically closely related to CSFV genotype a2 (Alfort type) pig strains. Indian strains, reported from the states of Tamil Nadu and Meghalaya, were genetically closely related to CSFV genotype a1 (Brescia type) and a5 pig strains, respectively. These preliminary observations are new and relevant in countries, where CSFV control and eradication strategies are applied.
Sections du résumé
Background
Classical swine fever virus (CSFV), species member of the family
Aim
The secondary structures of the internal ribosome entry site in the 5' untranslated region (UTR) were used for the genomic characterization of bovine strains.
Methods
Sequences have been compared to the representative CSFV strains isolated from pigs, vaccines, and contaminants from porcine cell lines and an ovine strain isolated in Spain.
Results
The observed sequences from cattle showed a genetic relatedness with live-attenuated vaccine strains used in pigs. Sequence characteristics of the Chinese strain S171 are genetically distant from the previously reported CSFV genotypes, suggesting a new outgroup in the species, described for the first time, and named CSFV-d. Other Chinese strains were genetically closely related to CSFV genotype a2 (Alfort type) pig strains. Indian strains, reported from the states of Tamil Nadu and Meghalaya, were genetically closely related to CSFV genotype a1 (Brescia type) and a5 pig strains, respectively.
Conclusion
These preliminary observations are new and relevant in countries, where CSFV control and eradication strategies are applied.
Identifiants
pubmed: 32426263
doi: 10.4314/ovj.v10i1.15
pii: OVJ-10-94
pmc: PMC7193884
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
94-115Déclaration de conflit d'intérêts
Authors declare that there is no conflict of interest.
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