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Taylor and Francis Group, Bacteriophage, 4(4), p. e980125

DOI: 10.4161/21597081.2014.980125

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Niche-dependent genetic diversity in Antarctic metaviromes

Journal article published in 2014 by Olivier Zablocki, Lonnie van Zyl, Evelien M. Adriaenssens ORCID, Enrico Rubagotti, Marla Tuffin, Stephen Craig Cary, Don Cowan
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The metaviromes from two different Antarctic terrestrial soil niches have been analysed. Both hypoliths (microbial assemblages beneath transluscent rocks) and surrounding open soils showed a high level diversity of tailed phages, viruses of algae and amoeba, and virophage sequences. Comparisons of other global metaviromes with the Antarctic libraries showed a niche-dependent clustering pattern, unrelated to the geographical origin of a given metavirome. Within the Antarctic open soil metavirome, a putative circularly permuted, ∼42kb dsDNA virus genome was annotated, showing features of a temperate phage possessing a variety of conserved protein domains with no significant taxonomic affiliations in current databases.