Comparison of deep-water viromes from the Atlantic Ocean and the Mediterranean Sea

Author(s)
Christian Winter, Juan A L Garcia, Markus G. Weinbauer, Michael S. DuBow, Gerhard J. Herndl
Abstract

The aim of this study was to compare the composition of two deep-sea viral communities obtained from the Romanche Fracture Zone in the Atlantic Ocean (collected at 5200 m depth) and the southwest Mediterranean Sea (from 2400 m depth) using a pyro-sequencing approach. The results are based on 18.7% and 6.9% of the sequences obtained from the Atlantic Ocean and the Mediterranean Sea, respectively, with hits to genomes in the non-redundant viral RefSeq database. The identifiable richness and relative abundance in both viromes were dominated by archaeal and bacterial viruses accounting for 92.3% of the relative abundance in the Atlantic Ocean and for 83.6% in the Mediterranean Sea. Despite characteristic differences in hydrographic features between the sampling sites in the Atlantic Ocean and the Mediterranean Sea, 440 virus genomes were found in both viromes. An additional 431 virus genomes were identified in the Atlantic Ocean and 75 virus genomes were only found in the Mediterranean Sea. The results indicate that the rather contrasting deep-sea environments of the Atlantic Ocean and the Mediterranean Sea share a common core set of virus types constituting the majority of both virus communities in terms of relative abundance (Atlantic Ocean: 81.4%; Mediterranean Sea: 88.7%).

Organisation(s)
Functional and Evolutionary Ecology
External organisation(s)
Royal Netherlands Institute for Sea Research, Observatoire Océanologique, Sorbonne Universités, Université Paris XI - Paris-Sud
Journal
PLoS ONE
Volume
9
No. of pages
8
ISSN
1932-6203
DOI
https://doi.org/10.1371/journal.pone.0100600
Publication date
06-2014
Peer reviewed
Yes
Austrian Fields of Science 2012
106021 Marine biology
Keywords
ASJC Scopus subject areas
Agricultural and Biological Sciences(all), Biochemistry, Genetics and Molecular Biology(all), Medicine(all)
Portal url
https://ucris.univie.ac.at/portal/en/publications/comparison-of-deepwater-viromes-from-the-atlantic-ocean-and-the-mediterranean-sea(638a5ac6-4c77-43d1-ae1b-a05cb7ef05b1).html