Green evolution and dynamic adaptations revealed by genomes of the marine picoeukaryotes micromonas

Worden, Alexandra Z., Lee, Jae-Hyeok, Mock, Thomas ORCID: https://orcid.org/0000-0001-9604-0362, Rouzé, Pierre, Simmons, Melinda P., Aerts, Andrea L., Allen, Andrew E., Cuvelier, Marie L., Derelle, Evelyne, Everett, Meredith V., Foulon, Elodie, Grimwood, Jane, Gundlach, Heidrun, Henrissat, Bernard, Napoli, Carolyn, McDonald, Sarah M., Parker, Micaela S., Rombauts, Stephane, Salamov, Aasf, Von Dassow, Peter, Badger, Jonathan H., Coutinho, Pedro M., Demir, Elif, Dubchak, Inna, Gentemann, Chelle, Eikrem, Wenche, Gready, Jill E., John, Uwe, Lanier, William, Lindquist, Erika A., Lucas, Susan, Mayer, Klaus F. X., Moreau, Herve, Not, Fabrice, Otillar, Robert, Panaud, Olivier, Pangilinan, Jasmyn, Paulsen, Ian, Piegu, Benoit, Poliakov, Aaron, Robbens, Steven, Schmutz, Jeremy, Toulza, Eve, Wyss, Tania, Zelensky, Alexander, Zhou, Kemin, Armbrust, E. Virginia, Bhattacharya, Debashish, Goodenough, Ursula W., Van De Peer, Yves and Grigoriev, Igor V. (2009) Green evolution and dynamic adaptations revealed by genomes of the marine picoeukaryotes micromonas. Science, 324 (5924). pp. 268-272. ISSN 1095-9203

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Abstract

Picoeukaryotes are a taxonomically diverse group of organism less than 2 micrometers in diameter. Photosynthetic marine picoeukaryotes in the genus Micromonas thrive in ecosystems ranging from tropical to polar and could serve as sentinel organisms for biogeochemical fluxes of modern oceans during climate change. These broadly distributed primary producers belong to an anciently diverged sister clade to land plants. Although Micromonas isolates have high 18S ribosomal RNA gene identity, we found that genomes from two isolates shared only 90% of their predicted genes. Their independent evolutionary paths were emphasized by distinct riboswitch arrangements as well as the discovery of intronic repeat elements in one isolate, and in metagenomic data, but not in other genomes. Divergence appears to have been facilitated by selection and acquisition processes that actively shape the repertoire of genes that are mutually exclusive between the two isolates differently than the core genes. Analyses of the Micromonas genomes offer valuable insights into ecological differentiation and the dynamic nature of early plant evolution.

Item Type:	Article
Uncontrolled Keywords:	sdg 13 - climate action,sdg 14 - life below water,sdg 15 - life on land ,/dk/atira/pure/sustainabledevelopmentgoals/climate_action
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Environmental Biology Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Depositing User:	Rosie Cullington
Date Deposited:	23 Feb 2011 12:19
Last Modified:	13 Apr 2023 13:34
URI:	https://ueaeprints.uea.ac.uk/id/eprint/24440
DOI:	10.1126/science.1167222

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