The Seminavis robusta genome provides insights into the evolutionary adaptations of benthic diatoms

Osuna-Cruz, Cristina Maria, Bilcke, Gust, Vancaester, Emmelien, De Decker, Sam, Bones, Atle M., Winge, Per, Poulsen, Nicole, Bulankova, Petra, Verhelst, Bram, Audoor, Sien, Belisova, Darja, Pargana, Aikaterini, Russo, Monia, Stock, Frederike, Cirri, Emilio, Brembu, Tore, Pohnert, Georg, Piganeau, Gwenael, Ferrante, Maria Immacolata, Mock, Thomas, Sterck, Lieven, Sabbe, Koen, De Veylder, Lieven, Vyverman, Wim and Vandepoele, Klaas (2020) The Seminavis robusta genome provides insights into the evolutionary adaptations of benthic diatoms. Nature Communications, 11. ISSN 2041-1723

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Abstract

Benthic diatoms are the main primary producers in shallow freshwater and coastal environments, fulfilling important ecological functions such as nutrient cycling and sediment stabilization. However, little is known about their evolutionary adaptations to these highly structured but heterogeneous environments. Here, we report a reference genome for the marine biofilm-forming diatom Seminavis robusta, showing that gene family expansions are responsible for a quarter of all 36,254 protein-coding genes. Tandem duplications play a key role in extending the repertoire of specific gene functions, including light and oxygen sensing, which are probably central for its adaptation to benthic habitats. Genes differentially expressed during interactions with bacteria are strongly conserved in other benthic diatoms while many species-specific genes are strongly upregulated during sexual reproduction. Combined with re-sequencing data from 48 strains, our results offer insights into the genetic diversity and gene functions in benthic diatoms.

Item Type: Article
Uncontrolled Keywords: chemistry(all),biochemistry, genetics and molecular biology(all),physics and astronomy(all) ,/dk/atira/pure/subjectarea/asjc/1600
Faculty \ School: Faculty of Science > School of Environmental Sciences
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Depositing User: LivePure Connector
Date Deposited: 14 Jul 2020 23:50
Last Modified: 22 Sep 2020 00:02
URI: https://ueaeprints.uea.ac.uk/id/eprint/76043
DOI: 10.1038/s41467-020-17191-8

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