scholarly journals Environment Determines Epistatic Patterns for a ssDNA Virus

Genetics ◽  
2013 ◽  
Vol 196 (1) ◽  
pp. 267-279 ◽  
Author(s):  
S. Brian Caudle ◽  
Craig R. Miller ◽  
Darin R. Rokyta
Keyword(s):  
Ssdna Virus

scholarly journals Novel ssDNA virus recovered from estuarine Mollusc (Amphibola crenata) whose replication associated protein (Rep) shares similarities with Rep-like sequences of bacterial origin

2013 ◽  
Vol 94 (5) ◽  
pp. 1104-1110 ◽  
Author(s):  
Anisha Dayaram ◽  
Sharyn Goldstien ◽  
Peyman Zawar-Reza ◽  
Christopher Gomez ◽  
Jon S. Harding ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Ssdna Virus ◽  
Organic Detritus ◽  
Bacterial Origin ◽  
The Past ◽  
Circular Ssdna ◽  
Human Pollution ◽  
Micro Organisms ◽  
Ssdna Viruses

Over the past couple of years highly diverse novel ssDNA viruses have been discovered. Here, we present the first ssDNA virus, Gastropod-associated circular ssDNA virus (GaCSV), recovered from a mollusc Amphibola crenata Martyn 1784, which is a deposit feeder that grazes micro-organisms and organic detritus on the surface of tidal mudflats. The GaCSV (2351 nt) genome contains two large bidirectionally transcribed ORFs. The smaller ORF (874 nt) has similarities to viral replication-associated protein (Rep) sequences of some bacteria and circoviruses, whereas the larger ORF (955 nt) does not relate to any sequences in public databases and we presume it potentially encodes the capsid protein. Phylogenetic analysis shows that the GaCSV Rep clusters with Rep-like sequences of bacterial origin, highlighting the role of ssDNA viruses in horizontal gene transfer. The occurrence of previously unknown viruses in organisms associated with human pollution is a relatively unexplored field.

scholarly journals Distribution and Inferred Evolutionary Characteristics of a Chimeric ssDNA Virus Associated with Intertidal Marine Isopods

Viruses ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 361 ◽  
Author(s):  
Kalia Bistolas ◽  
Ryan Besemer ◽  
Lars Rudstam ◽  
Ian Hewson
Keyword(s):  
Ssdna Virus

scholarly journals A novel, highly divergent ssDNA virus identified in Brazil infecting apple, pear and grapevine

2015 ◽  
Vol 210 ◽  
pp. 27-33 ◽  
Author(s):  
Marcos Fernando Basso ◽  
José Cleydson Ferreira da Silva ◽  
Thor Vinícius Martins Fajardo ◽  
Elizabeth Pacheco Batista Fontes ◽  
Francisco Murilo Zerbini
Keyword(s):  
Ssdna Virus

Diagnostic methods for the detection of faba bean necrotic yellows virus, a circular ssDNA virus

EPPO Bulletin ◽  
1995 ◽  
Vol 25 (1-2) ◽  
pp. 329-336 ◽  
Author(s):  
L. KATUL ◽  
H. J. VETTEN ◽  
D.-E. LESEMANN ◽  
E. MAISS ◽  
K. M. MAKKOUK
Keyword(s):  
Faba Bean ◽  
Diagnostic Methods ◽  
Ssdna Virus ◽  
Circular Ssdna

An ssDNA virus infecting archaea: a new lineage of viruses with a membrane envelope

2009 ◽  
Vol 72 (2) ◽  
pp. 307-319 ◽  
Author(s):  
Maija K. Pietilä ◽  
Elina Roine ◽  
Lars Paulin ◽  
Nisse Kalkkinen ◽  
Dennis H. Bamford
Keyword(s):  
Ssdna Virus ◽  
Membrane Envelope

scholarly journals The genome of the diatom Chaetoceros tenuissimus carries an ancient integrated fragment of an extant virus

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuki Hongo ◽  
Kei Kimura ◽  
Yoshihiro Takaki ◽  
Yukari Yoshida ◽  
Shuichiro Baba ◽  
...  
Keyword(s):  
Phylogenetic Tree ◽  
Environmental Conditions ◽  
Phaeodactylum Tricornutum ◽  
Evolutionary Relationship ◽  
Thalassiosira Pseudonana ◽  
Gene Fragment ◽  
Ssdna Virus ◽  
Endogenous Virus ◽  
The World ◽  
Long Interspersed Nuclear Element

AbstractDiatoms are one of the most prominent oceanic primary producers and are now recognized to be distributed throughout the world. They maintain their population despite predators, infections, and unfavourable environmental conditions. One of the smallest diatoms, Chaetoceros tenuissimus, can coexist with infectious viruses during blooms. To further understand this relationship, we sequenced the C. tenuissimus strain NIES-3715 genome. A gene fragment of a replication-associated gene from the infectious ssDNA virus (designated endogenous virus-like fragment, EVLF) was found to be integrated into each 41 Mb of haploid assembly. In addition, the EVLF was transcriptionally active and conserved in nine other C. tenuissimus strains from different geographical areas, although the primary structures of their proteins varied. The phylogenetic tree further suggested that the EVLF was acquired by the ancestor of C. tenuissimus. Additionally, retrotransposon genes possessing a reverse transcriptase function were more abundant in C. tenuissimus than in Thalassiosira pseudonana and Phaeodactylum tricornutum. Moreover, a target site duplication, a hallmark for long interspersed nuclear element retrotransposons, flanked the EVLF. Therefore, the EVLF was likely integrated by a retrotransposon during viral infection. The present study provides further insights into the diatom-virus evolutionary relationship.

scholarly journals An experimental strategy for preparing circular ssDNA virus genomes for next-generation sequencing

2021 ◽  
pp. 114405
Author(s):  
Catherine D. Aimone ◽  
J. Steen Hoyer ◽  
Anna E. Dye ◽  
David O. Deppong ◽  
Siobain Duffy ◽  
...  
Keyword(s):  
Next Generation Sequencing ◽  
Ssdna Virus ◽  
Next Generation ◽  
Experimental Strategy ◽  
Circular Ssdna ◽  
Virus Genomes ◽  
Generation Sequencing

scholarly journals Aquatic viruses: the emerging story

2006 ◽  
Vol 86 (3) ◽  
pp. 449-451 ◽  
Author(s):  
John A. Raven
Keyword(s):  
Primary Production ◽  
Ssdna Virus ◽  
Organic C ◽  
Photosynthetic Organisms ◽  
Higher Taxa ◽  
Planktonic Diatom ◽  
Living Organisms

It is likely that all living organisms can be infected by one or more viruses. One of the latest higher taxa to be converted from ‘no characterized viruses’ to ‘well characterized viruses’ are the diatoms (Bacillariophyceae, Heterokontophyta) with the recent publication of three papers characterizing an ssRNA and a ssDNA virus from two genera (Chaetoceros and Rhizosolenia) of marine planktonic diatom (Nagasaki et al., 2004, 2005; Bettarel et al., 2005). It would have been strange if viruses had not been able to exploit the dominant, in terms of global primary production, photosynthetic organisms in the ocean (assimilating perhaps as much as 20 Pg inorganic C into organic C per year), despite the less than completely convincing arguments assembled by Raven & Waite (2004) as to possible anti-viral defences unique to diatoms.

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