Retroviruses of wild and cultured fish |
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Authors: | Lepa A Siwicki A K |
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Affiliation: | Department of Fish Pathology and Immunology, Inland Fisheries Institute, Oczapowskiego 10, 10-719 Olsztyn, Poland. |
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Abstract: | Retroviruses comprise a large group of enveloped RNA viruses which have been found in a wide range of vertebrate species including fish. To date a number of fish retrovirus genomes have been partially or completely sequenced. Phylogenetic analysis and genome organization indicate a high diversity of fish retroviruses as well as some unique structural features that have not been found in any other retroviruses. Piscine retroviruses comprise both exogenous and endogenous viruses; most of them are associated with proliferative diseases. Because several of these proliferative diseases have a seasonal trend, they provide an excellent model for studying tumor development and regression. The aim of this work was to review the best-described fish retroviruses. |
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