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Viral characteristics of the warm Atlantic and cold Arctic water masses in the Nordic Seas


Gao, C and Xia, J and Zhou, X and Liang, X and Jiang, Y and Wang, M and Shao, H and Shi, X and Guo, C and He, H and Wang, H and He, J and Hu, D and Wang, X and Zhao, J and Zhang, Y-Z and Sung, YY and Mok, YJ and Wong, LL and McMinn, A and Suttle, CA and Wang, M, Viral characteristics of the warm Atlantic and cold Arctic water masses in the Nordic Seas, Applied and Environmental Microbiology, 87, (22) Article e01160-21. ISSN 0099-2240 (2021) [Refereed Article]

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Copyright 2021 American Society for Microbiology. All Rights Reserved.

DOI: doi:10.1128/AEM.01160-21


Nordic Seas are the subarctic seas connecting the Arctic Ocean and North Atlantic Ocean with complex water masses, experiencing an abrupt climate change. Though knowledge of the marine virosphere has expanded rapidly, the diversity of viruses and their relationships with host cells and water masses in the Nordic Seas remain to be fully revealed. Here, we establish the Nordic Sea DNA virome (NSV) data set of 55,315 viral contigs including 1,478 unique viral populations from seven stations influenced by both the warm Atlantic and cold Arctic water masses. Caudovirales dominated in the seven NSVs, especially in the warm Atlantic waters. The major giant nucleocytoplasmic large DNA viruses (NCLDVs) contributed a significant proportion of the classified viral contigs in the NSVs (32.2%), especially in the cold Arctic waters (44.9%). The distribution patterns of Caudovirales and NCLDVs were a reflection of the community structure of their hosts in the corresponding water masses and currents. Latitude, pH, and flow speed were found to be key factors influencing the microbial communities and coinfluencing the variation of viral communities. Network analysis illustrated the tight coupling between the variation of viral communities and microbial communities in the Nordic Seas. This study suggests a probable linkage between viromes, host cells, and surface water masses from both the cool Arctic and warm Atlantic Oceans.

Item Details

Item Type:Refereed Article
Keywords:virus, Arctic, Nordic, DNA virome, Nordic Seas, microbial community, metagenomics, water masses and currents
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Marine biodiversity
UTAS Author:McMinn, A (Professor Andrew McMinn)
ID Code:147624
Year Published:2021
Deposited By:Ecology and Biodiversity
Deposited On:2021-11-10
Last Modified:2021-12-03

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