Integrated circoviral rep-like sequences in the genome of cyprinid fish

Recently a new group of circoviruses have been detected in tissues of Barbel fish and European catfish in Hungary. In our study circovirus genomes were screened in eight additional fish species for the detection and characterization of circoviruses. Two species of these bore circoviral sequences bas...

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Bibliographic Details
Published in:Virus genes Vol. 47; no. 2; pp. 374 - 377
Main Authors: Fehér, Enikő, Székely, Csaba, Lőrincz, Márta, Cech, Gábor, Tuboly, Tamás, Singh, Hridaya Shanker, Bányai, Krisztián, Farkas, Szilvia L
Format: Journal Article
Language:English
Published: Boston Springer-Verlag 01.10.2013
Springer US
Springer Nature B.V
Subjects:
Animals
Biomedical and Life Sciences
Biomedicine
Circovirus
Circovirus - genetics
Cyprinidae
Cyprinidae - genetics
Cyprinidae - virology
fish
Freshwater
genes
genetics
Genome
Labeo rohita
Medical Microbiology
Molecular Sequence Data
mutation
nucleotide sequences
Phylogeny
Plant Sciences
Polymerase Chain Reaction
Sequence Analysis, DNA
Sequence Homology
Silurus glanis
Viral Proteins
Viral Proteins - genetics
Virology
Hungary
Bony fish
Endogenous virus
Circovirus
India
ISSN:0920-8569, 1572-994X, 1572-994X
Online Access:Get full text
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Summary:Recently a new group of circoviruses have been detected in tissues of Barbel fish and European catfish in Hungary. In our study circovirus genomes were screened in eight additional fish species for the detection and characterization of circoviruses. Two species of these bore circoviral sequences based on conventional PCR assay targeting the replication-associated protein coding gene fragments. Interestingly, the methods successfully used before failed to amplify other parts of the circular viral genome, suggesting the presence of partial, integrated genetic elements in the genome of the host. The successfully sequenced fragments of the Indian rohu (Labeo rohita) encoded mutations which may cause frameshifts or termination in the coding region described previously in other vertebrates. Phylogenetic analyses presumed that integration of the viral genetic elements might have progressed concurrently or following the diversification of cyprinid fish. Further studies on the nature of whole circovirus genomes and integrated elements may help to understand their potential role and evolution in different fish species.
Bibliography:http://dx.doi.org/10.1007/s11262-013-0928-9
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ISSN:0920-8569
1572-994X
1572-994X
DOI:10.1007/s11262-013-0928-9