Dip in the gene pool: metagenomic survey of natural coccolithovirus communities

Pagarete, A; Kusannmano, K; Petersen, K; Kimmance, SA; Martinez Martinez, J; Wilson, WH; Hehemann, JH; Allen, MJ; Sandaa, RA. 2014 Dip in the gene pool: metagenomic survey of natural coccolithovirus communities. Virology Journal. (In Press)

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Abstract/Summary

Despite the global oceanic distribution and recognized biogeochemical impact of coccolithoviruses (EhV), their diversity remains poorly understood. Here we employed a metagenomic approach to study the occurrence and progression of natural EhV community genomic variability. Analysis of EhV metagenomes from the early and late stages of an induced bloom led to three main discoveries. First, we observed resilient and specific genomic signatures in the EhV community associated with the Norwegian coast, which reinforce the existence of limitations to the capacity of dispersal and genomic exchange among EhV populations. Second, we identified a hyper-variable region (approximately 21 kbp long) in the coccolithovirus genome. Third, we observed a clear trend for EhV relative amino-acid diversity to reduce from early to late stages of the bloom. This study validated two new methodological combinations, and proved very useful in the discovery of new genomic features associated with coccolithovirus natural communities.

Item Type: Publication - Article
Subjects: Ecology and Environment
Marine Sciences
Divisions: Plymouth Marine Laboratory > Science Areas > Cycling in the Sunlit Ocean
Depositing User: Dr Susan Kimmance
Date made live: 10 Jun 2014 13:54
Last Modified: 06 Jun 2017 16:12
URI: http://plymsea.ac.uk/id/eprint/6071

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