The discovery of Antarctic RNA viruses: a new game changer.

Abstract:

:Antarctic ecosystems are dominated by micro-organisms, and viruses play particularly important roles in the food webs. Since the first report in 2009 (López-Bueno et al. ), 'omic'-based studies have greatly enlightened our understanding of Antarctic aquatic microbial diversity and ecosystem function (Wilkins et al. ; Cavicchioli ). This has included the discovery of many new eukaryotic viruses (López-Bueno et al. ), virophage predators of algal viruses (Yau et al. ), bacteria with resistance to phage (Lauro et al. ) and mechanisms of haloarchaeal evasion, defence and adaptation to viruses (Tschitschko et al. ). In this issue of Molecular Ecology, López-Bueno et al. () report the first discovery of RNA viruses from an Antarctic aquatic environment. High sequence coverage enabled genome variation to be assessed for four positive-sense single-stranded RNA viruses from the order Picornavirales. By examining the populations present in the water column and in the lake's catchment area, populations of 'quasispecies' were able to be linked to local environmental factors. In view of the importance of viruses in Antarctic ecosystems but lack of data describing them, this study represents a significant advance in the field.

journal_name

Mol Ecol

journal_title

Molecular ecology

authors

Cavicchioli R,Erdmann S

doi

10.1111/mec.13387

subject

Has Abstract

pub_date

2015-10-01 00:00:00

pages

4809-11

issue

19

eissn

0962-1083

issn

1365-294X

journal_volume

24

pub_type

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