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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
High global diversity of cycloviruses amongst dragonflies
Journal of General Virology, Volume 94, No. PART8, Year 2013
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Description
Members of the family Circoviridae, specifically the genus Circovirus, were thought to infect only vertebrates; however, members of a sister group under the same family, the proposed genusCyclovirus, have been detected recently in insects. In an effort to explore the diversity of cycloviruses and better understand the evolution of these novel ssDNA viruses, here we present five cycloviruses isolated from three dragonfly species (Orthetrum sabina, Xanthocnemis zealandica and Rhionaeschna multicolor) collected in Australia, New Zealand and the USA, respectively. The genomes of these five viruses share similar genome structure to other cycloviruses, with a circular ~1.7 kb genome and two major bidirectionally transcribed ORFs. The genomic sequence data gathered during this study were combined with all cyclovirus genomes available in public databases to identify conserved motifs and regulatory elements in the intergenic regions, as well as determine diversity and recombinant regions within their genomes. The genomes reported here represent four different cyclovirus species, three of which are novel. Our results confirm that cycloviruses circulate widely in winged-insect populations; in eight different cyclovirus species identified in dragonflies to date, some of these exhibit a broad geographical distribution. Recombination analysis revealed both intra-and inter-species recombination events amongst cycloviruses, including genomes recovered from disparate sources (e.g. goat meat and human faeces). Similar to other well-characterized circular ssDNA viruses, recombination may play an important role in cyclovirus evolution. © 2013 SGM.
Authors & Co-Authors
Dayaram, Anisha
New Zealand, Christchurch
University of Canterbury
Potter, Kristen A.
United States, Flagstaff
Northern Arizona University
Moline, Angela B.
United States, Flagstaff
Northern Arizona University
Rosenstein, Dana Drake
United States, Tucson
The University of Arizona
Marinov, Milen
New Zealand, Christchurch
University of Canterbury
Thomas, John Edward
Australia, Brisbane
The University of Queensland
Australia, Brisbane
Queensland Department of Agriculture and Fisheries
Breitbart, Mya
United States, St Petersburg
University of South Florida St. Petersburg
Rosario, Karyna
United States, St Petersburg
University of South Florida St. Petersburg
Argüello, Gerardo
Mexico, San Luis Potosi
Instituto Potosino de Investigación Científica y Tecnológica, A.c.
Varsani, Arvind
New Zealand, Christchurch
University of Canterbury
South Africa, Cape Town
University of Cape Town
Statistics
Citations: 10
Authors: 10
Affiliations: 8
Identifiers
Doi:
10.1099/vir.0.052654-0
ISSN:
00221317
e-ISSN:
14652099