Betaretrovirus infections in dromedary camels in Saudi Arabia.
dromedary camel
genome
interspecies transmission
nasal lesions
phylogenetic analysis
retrovirus
sequencing
Journal
Veterinary medicine and science
ISSN: 2053-1095
Titre abrégé: Vet Med Sci
Pays: England
ID NLM: 101678837
Informations de publication
Date de publication:
05 2022
05 2022
Historique:
pubmed:
4
2
2022
medline:
25
5
2022
entrez:
3
2
2022
Statut:
ppublish
Résumé
Retroviral infections have been reported in many species of animals, especially cattle, sheep and goats. However, there are no available reports about retrovirus infection in dromedary camels. Several dromedary camels showed visible tumor-like lesions on and around the nostrils as well as around the eyes. Following are the objectives: to identify the causative agents of these identified tumours in dromedary camels and to perform molecular characterization of the detected strains of the causative agent. We extracted the nucleic acids from some fresh lesions out of these animals, and then amplified some key retrovirus genes. We amplified several regions of the rotavirus genome using the PCR technique. The obtained sequences were assembled and the phylogenetic trees were conducted per each target retrovirus gene. Our results revealed a high degree of identity to some retroviruses of sheep. Phylogenetic analysis based on some retrovirus genes revealed that the causative agents of these lesions are closely related to sheep retroviruses, particularly the Jaagsiekte sheep Retrovirus (JSRV) and the ENTV. To the best of our knowledge, this is the first report of retrovirus infections in dromedary camels in the Arabian Peninsula. This highlights the possible species jump for the retrovirus from sheep and goats to the dromedary camels, which live in close proximity with these animals in many parts of the world, especially the Arabian Peninsula.
Sections du résumé
BACKGROUND
Retroviral infections have been reported in many species of animals, especially cattle, sheep and goats. However, there are no available reports about retrovirus infection in dromedary camels. Several dromedary camels showed visible tumor-like lesions on and around the nostrils as well as around the eyes.
OBJECTIVES
Following are the objectives: to identify the causative agents of these identified tumours in dromedary camels and to perform molecular characterization of the detected strains of the causative agent.
METHODS
We extracted the nucleic acids from some fresh lesions out of these animals, and then amplified some key retrovirus genes. We amplified several regions of the rotavirus genome using the PCR technique. The obtained sequences were assembled and the phylogenetic trees were conducted per each target retrovirus gene.
RESULTS
Our results revealed a high degree of identity to some retroviruses of sheep. Phylogenetic analysis based on some retrovirus genes revealed that the causative agents of these lesions are closely related to sheep retroviruses, particularly the Jaagsiekte sheep Retrovirus (JSRV) and the ENTV.
CONCLUSIONS
To the best of our knowledge, this is the first report of retrovirus infections in dromedary camels in the Arabian Peninsula. This highlights the possible species jump for the retrovirus from sheep and goats to the dromedary camels, which live in close proximity with these animals in many parts of the world, especially the Arabian Peninsula.
Identifiants
pubmed: 35114072
doi: 10.1002/vms3.760
pmc: PMC9122393
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1330-1336Informations de copyright
© 2022 The Authors. Veterinary Medicine and Science published by John Wiley & Sons Ltd.
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