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

Pagarete, A, Kusonmano, K, Petersen, K, Kimmance, SA, Martinez Martinez, J, Wilson, WH, Hehemann, J-H, Allen, MJ and Sandaa, R-A 2014 Dip in the gene pool: metagenomic survey of natural coccolithovirus communities. Virology, 466-46. 129-37. https://doi.org/10.1016/j.virol.2014.05.020

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Abstract/Summary

Despite the global oceanic distribution and recognised 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 21kbp 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 > National Capability categories > Added Value Plymouth Marine Laboratory > Science Areas > Cycling in the Sunlit Ocean (expired) Plymouth Marine Laboratory > Science Areas > Marine Biochemistry and Observations
Depositing User:	Mike Allen
Date made live:	28 Jan 2016 15:23
Last Modified:	25 Apr 2020 09:57
URI:	https://plymsea.ac.uk/id/eprint/6766

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