Diatoms and their microbiomes in complex and changing polar oceans

Gilbertson, Reuben, Langan, Emma and Mock, Thomas (2022) Diatoms and their microbiomes in complex and changing polar oceans. Frontiers in Microbiology, 13. ISSN 1664-302X

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Abstract

Diatoms, a key group of polar marine microbes, support highly productive ocean ecosystems. Like all life on earth, diatoms do not live in isolation, and they are therefore under constant biotic and abiotic pressures which directly influence their evolution through natural selection. Despite their importance in polar ecosystems, polar diatoms are understudied compared to temperate species. The observed rapid change in the polar climate, especially warming, has created increased research interest to discover the underlying causes and potential consequences on single species to entire ecosystems. Next-Generation Sequencing (NGS) technologies have greatly expanded our knowledge by revealing the molecular underpinnings of physiological adaptations to polar environmental conditions. Their genomes, transcriptomes, and proteomes together with the first eukaryotic meta-omics data of surface ocean polar microbiomes reflect the environmental pressures through adaptive responses such as the expansion of protein families over time as a consequence of selection. Polar regions and their microbiomes are inherently connected to climate cycles and their feedback loops. An integrated understanding built on “omics” resources centered around diatoms as key primary producers will enable us to reveal unifying concepts of microbial co-evolution and adaptation in polar oceans. This knowledge, which aims to relate past environmental changes to specific adaptations, will be required to improve climate prediction models for polar ecosystems because it provides a unifying framework of how interacting and co-evolving biological communities might respond to future environmental change.

Item Type: Article
Additional Information: Funding Information: RG and TM acknowledge funding from The Leverhulme Trust (RPG-2017-364) and the Natural Environment Research Council (NERC) (Grant Nos. NE/K004530/1 and NE/R000883/1). EL acknowledges funding from NEXUSS, a Natural Environmental Research Council (NERC) funded Doctoral Training Partnership (DTP). This work also partially funded from the School of Environmental Sciences at the University of East Anglia, Norwich, United Kingdom.
Uncontrolled Keywords: diatoms,psychrophile,genomics,meta-omics,polar winter,climate change,adaptive evolution,microbiomes,climate change,microbiology (medical),microbiology,sdg 14 - life below water,sdg 13 - climate action ,/dk/atira/pure/subjectarea/asjc/2700/2726
Faculty \ School: Faculty of Science > School of Environmental Sciences
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Depositing User: LivePure Connector
Date Deposited: 30 Mar 2022 09:30
Last Modified: 29 May 2022 00:17
URI: https://ueaeprints.uea.ac.uk/id/eprint/84347
DOI: 10.3389/fmicb.2022.786764

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