Molecular characterization of five betacryptoviruses infecting four clover species and dill

Molecular characterization of five betacryptoviruses infecting four clover species and dill The family Partitiviridae includes plant ( Alphacryptovirus and Betacryptovirus ), fungal ( Partitivirus ) and protozoan ( Cryspovirus ) viruses with bisegmented dsRNA genomes and isometric virions. Cryptic viruses commonly occur in different plant species without causing any symptoms. So far, numerous sequences have been determined for viruses of the genus Alphacryptovirus , but no sequence is available for any assigned member of the genus Betacryptovirus . Following extraction, cloning and sequence analysis of double-stranded RNA in this study, we report the molecular properties of three assigned members of the genus Betacryptovirus, white clover cryptic virus 2, red clover cryptic virus 2 and hop trefoil cryptic virus 2, and two new putative betacryptoviruses found in crimson clover and dill. Betacryptoviruses share sequence motifs with members of the genus Partitivirus . In phylogenetic analyses, members of the genus Betacryptovirus formed a new sub-cluster within the clusters containing members of the genus Partitivirus. Our results provide evidence for a distinct evolutionary lineage of dsRNA viruses of plants and fungi. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Molecular characterization of five betacryptoviruses infecting four clover species and dill

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Publisher
Springer Vienna
Copyright
Copyright © 2013 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-013-1691-x
Publisher site
See Article on Publisher Site

Abstract

The family Partitiviridae includes plant ( Alphacryptovirus and Betacryptovirus ), fungal ( Partitivirus ) and protozoan ( Cryspovirus ) viruses with bisegmented dsRNA genomes and isometric virions. Cryptic viruses commonly occur in different plant species without causing any symptoms. So far, numerous sequences have been determined for viruses of the genus Alphacryptovirus , but no sequence is available for any assigned member of the genus Betacryptovirus . Following extraction, cloning and sequence analysis of double-stranded RNA in this study, we report the molecular properties of three assigned members of the genus Betacryptovirus, white clover cryptic virus 2, red clover cryptic virus 2 and hop trefoil cryptic virus 2, and two new putative betacryptoviruses found in crimson clover and dill. Betacryptoviruses share sequence motifs with members of the genus Partitivirus . In phylogenetic analyses, members of the genus Betacryptovirus formed a new sub-cluster within the clusters containing members of the genus Partitivirus. Our results provide evidence for a distinct evolutionary lineage of dsRNA viruses of plants and fungi.

Journal

Archives of VirologySpringer Journals

Published: Sep 1, 2013

References

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