Circular replication-associated protein encoding DNA viruses identified in the faecal matter of various animals in New Zealand

2016 ◽  
Vol 43 ◽  
pp. 151-164 ◽  
Author(s):  
Olivia Steel ◽  
Simona Kraberger ◽  
Alyssa Sikorski ◽  
Laura M. Young ◽  
Ryan J. Catchpole ◽  
...  
Viruses ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 532 ◽  
Author(s):  
Simona Kraberger ◽  
Kara Schmidlin ◽  
Rafaela S. Fontenele ◽  
Matthew Walters ◽  
Arvind Varsani

Over the last decade, arthropods have been shown to harbour a rich diversity of viruses. Through viral metagenomics a large diversity of single-stranded (ss) DNA viruses have been identified. Here we examine the ssDNA virome of the hematophagous New Zealand blackfly using viral metagenomics. Our investigation reveals a plethora of novel ssDNA viral genomes, some of which cluster in the viral families Genomoviridae (n = 9), Circoviridae (n = 1), and Microviridae (n = 108), others in putative families that, at present, remain unclassified (n = 20) and one DNA molecule that only encodes a replication associated protein. Among these novel viruses, two putative multi-component virus genomes were recovered, and these are most closely related to a Tongan flying fox faeces-associated multi-component virus. Given that the only other known multi-component circular replication-associated (Rep) protein encoding single-stranded (CRESS) DNA viruses infecting plants are in the families Geminiviridae (members of the genus Begomovirus) and Nanoviridae, it appears these are likely a new multi-component virus group which may be associated with animals. This study reiterates the diversity of ssDNA viruses in nature and in particular with the New Zealand blackflies.


2018 ◽  
Vol 164 (1) ◽  
pp. 237-242 ◽  
Author(s):  
Cécile Richet ◽  
Simona Kraberger ◽  
Denis Filloux ◽  
Pauline Bernardo ◽  
Gordon W. Harkins ◽  
...  

2017 ◽  
Vol 163 (3) ◽  
pp. 671-678 ◽  
Author(s):  
Gábor Kemenesi ◽  
Kornélia Kurucz ◽  
Brigitta Zana ◽  
Fanni Földes ◽  
Péter Urbán ◽  
...  

2013 ◽  
Vol 177 (2) ◽  
pp. 209-216 ◽  
Author(s):  
Alyssa Sikorski ◽  
Melanie Massaro ◽  
Simona Kraberger ◽  
Laura M. Young ◽  
Darren Smalley ◽  
...  
Keyword(s):  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Eszter Kaszab ◽  
György Lengyel ◽  
Szilvia Marton ◽  
Ádám Dán ◽  
Krisztián Bányai ◽  
...  

AbstractCircoviruses, cycloviruses and other circular, replication-associated protein-encoding single stranded (CRESS) DNA viruses have been detected in a variety of animal taxa. In this study, cloacal swab samples (n = 90) were examined for CRESS DNA viruses from 31 wild bird species living at various aquatic sites in Hungary to identify possible reservoirs of viruses pathogenic to domestic poultry. A total of 30 (33.3%) specimens tested positive with pan-CRESS DNA virus specific PCR. Goose circovirus (GoCV), Duck associated cyclovirus 1 (DuACyV-1) and Garrulus glandarius associated circular virus 1 (GgaCV-1) were detected in nine, three and two different bird species, respectively. Selected specimens were subjected to whole genome sequencing. The obtained sequence data revealed conserved gene structure within the identified virus species and detected homologous (within GoCV) and possible heterologous recombination (within DuACyV-1) events. Results presented here provide new information on the genomic diversity and evolution of selected CRESS DNA viruses.


2019 ◽  
Author(s):  
Chuan Ku ◽  
Uri Sheyn ◽  
Arnau Sebé-Pedrós ◽  
Shifra Ben-Dor ◽  
Daniella Schatz ◽  
...  

AbstractNucleocytoplasmic large DNA viruses have the largest genomes among all viruses and infect diverse eukaryotes across various ecosystems, but their expression regulation and infection strategies are not well understood. We profiled single-cell transcriptomes of the worldwide-distributed microalga Emiliania huxleyi and its specific coccolithovirus responsible for massive bloom demise. Heterogeneity in viral transcript levels detected among single cells was used to reconstruct the viral transcriptional trajectory and to map cells along a continuum of infection states. This enabled identification of novel viral genetic programs, which are composed of five kinetic classes with distinct promoter elements. The infection substantially changed the host transcriptome, causing rapid shutdown of protein-encoding nuclear transcripts at the onset of infection, while the plastid and mitochondrial transcriptomes persisted to mid- and late stages, respectively. Single-cell transcriptomics thereby opens the way for tracking host-pathogen infection dynamics at high resolution within microbial communities in the marine environment.


Virology ◽  
2021 ◽  
Author(s):  
Joy M. Custer ◽  
Robyn White ◽  
Helen Taylor ◽  
Kara Schmidlin ◽  
Rafaela S. Fontenele ◽  
...  

2018 ◽  
Vol 6 (9) ◽  
Author(s):  
Simona Kraberger ◽  
Gabriel A. Visnovsky ◽  
Ron F. van Toor ◽  
Maketalena F. Male ◽  
Kara Waits ◽  
...  

ABSTRACT Varroa destructor is a ubiquitous and parasitic mite of honey bees, infecting them with pathogenic viruses having a major impact on apiculture. We identified two novel circular replication-associated protein (Rep)-encoding single-stranded (CRESS) DNA viruses from V. destructor sampled from a honey bee hive near Christchurch in New Zealand.


2015 ◽  
Vol 31 ◽  
pp. 73-86 ◽  
Author(s):  
Simona Kraberger ◽  
Gerardo R. Argüello-Astorga ◽  
Laurence G. Greenfield ◽  
Craig Galilee ◽  
Donald Law ◽  
...  

1999 ◽  
Vol 190 ◽  
pp. 563-566
Author(s):  
J. D. Pritchard ◽  
W. Tobin ◽  
J. V. Clausen ◽  
E. F. Guinan ◽  
E. L. Fitzpatrick ◽  
...  

Our collaboration involves groups in Denmark, the U.S.A. Spain and of course New Zealand. Combining ground-based and satellite (IUEandHST) observations we aim to determine accurate and precise stellar fundamental parameters for the components of Magellanic Cloud Eclipsing Binaries as well as the distances to these systems and hence the parent galaxies themselves. This poster presents our latest progress.


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