Detection of RGNNV genotype betanodavirus in the Black Sea and monitoring studies
| Autor: | Gülnur Kalayci, Buket Ozkan, Kemal Pekmez, Murat Kaplan, Abdurrahman Anil Cagirgan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Genotype Turkey 040301 veterinary sciences Betanodavirus Aquatic Science Virus 0403 veterinary science Fish Diseases 03 medical and health sciences RNA Virus Infections Grouper nervous necrosis virus Animals Nodaviridae Black sea Sea bass Pathogen Phylogeny Ecology Evolution Behavior and Systematics biology Marine aquaculture 04 agricultural and veterinary sciences biology.organism_classification Virology 030104 developmental biology Black Sea Bass |
| Zdroj: | Diseases of Aquatic Organisms. 144:117-121 |
| ISSN: | 1616-1580 0177-5103 |
| DOI: | 10.3354/dao03583 |
| Popis: | Viral nervous necrosis (VNN), caused by betanodavirus, is a significant viral infection that threatens marine aquaculture. Freshwater and marine fish farms in Turkey are subjected to annual pathogen screenings. In 2016, during the Nervous Necrosis Virus screening program conducted in the Black Sea, betanodavirus was unexpectedly detected using real-time reverse transcription-polymerase chain reaction in apparently healthy sea bass. Phylogenetic analysis of both the RNA1 and RNA2 segments of the virus determined that the betanodavirus detected was red-spotted grouper nervous necrosis virus genotype (RGNNV). Following the initial discovery of betanodavirus in the Black Sea, monitoring studies performed over a 3 yr period have not indicated any additional presence of the virus. The absence of clinical symptoms related to VNN disease in the area’s marine fish farms and the surrounding detection zone, and the fact that the virus has not been detected anew in monitoring programmes conducted following the initial detection, indicate that there is no virus circulation in the detection zone. |
| Databáze: | OpenAIRE |
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