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Pandoraviruses: Amoeba Viruses with Genomes Up to 2.5 Mb Reaching That of Parasitic Eukaryotes
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular biophysics.
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2013 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 341, no 6143, 281-286 p.Article in journal (Refereed) Published
Abstract [en]

Ten years ago, the discovery of Mimivirus, a virus infecting Acanthamoeba, initiated a reappraisal of the upper limits of the viral world, both in terms of particle size (>0.7 micrometers) and genome complexity (>1000 genes), dimensions typical of parasitic bacteria. The diversity of these giant viruses (the Megaviridae) was assessed by sampling a variety of aquatic environments and their associated sediments worldwide. We report the isolation of two giant viruses, one off the coast of central Chile, the other from a freshwater pond near Melbourne (Australia), without morphological or genomic resemblance to any previously defined virus families. Their micrometer-sized ovoid particles contain DNA genomes of at least 2.5 and 1.9 megabases, respectively. These viruses are the first members of the proposed "Pandoravirus" genus, a term reflecting their lack of similarity with previously described microorganisms and the surprises expected from their future study.

Place, publisher, year, edition, pages
2013. Vol. 341, no 6143, 281-286 p.
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Medical and Health Sciences Natural Sciences
URN: urn:nbn:se:uu:diva-206441DOI: 10.1126/science.1239181ISI: 000321959300045OAI: oai:DiVA.org:uu-206441DiVA: diva2:644937

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Available from: 2013-09-02 Created: 2013-08-30 Last updated: 2013-09-02Bibliographically approved

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