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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
general
Genome structure and metabolic features in the red seaweed Chondrus crispus shed light on evolution of the Archaeplastida
Proceedings of the National Academy of Sciences of the United States of America, Volume 110, No. 13, Year 2013
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Description
Red seaweeds are key components of coastal ecosystems and are economically important as food and as a source of gelling agents, but their genes and genomes have received little attention. Here we report the sequencing of the 105-Mbp genome of the florideophyte Chondrus crispus (Irish moss) and the annotation of the 9,606 genes. The genome features an unusual structure characterized by gene-dense regions surrounded by repeat-rich regions dominated by transposable elements. Despite its fairly large size, this genome shows features typical of compact genomes, e.g., on average only 0.3 introns per gene, short introns, low median distance between genes, small gene families, and no indication of large-scale genome duplication. The genome also gives insights into the metabolism of marine red algae and adaptations to the marine environment, including genes related to halogen metabolism, oxylipins, and multicellularity (microRNA processing and transcription factors). Particularly interesting are features related to carbohydrate metabolism, which include a minimalistic gene set for starch biosynthesis, the presence of cellulose synthases acquired before the primary endosymbiosis showing the polyphyly of cellulose synthesis in Archaeplastida, and cellulases absent in terrestrial plants as well as the occurrence of a mannosylglycerate synthase potentially originating from a marine bacterium. To explain the observations on genome structure and gene content, we propose an evolutionary scenario involving an ancestral red alga that was driven by early ecological forces to lose genes, introns, and intergenetic DNA; this loss was followed by an expansion of genome size as a consequence of activity of transposable elements. © PNAS 2013.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC3612618/bin/supp_110_13_5247__index.html
https://efashare.b-cdn.net/share/pmc/articles/PMC3612618/bin/1221259110_sapp.pdf
Authors & Co-Authors
Collén, Jonas
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Porcel, Betina M.
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Evry
Université D'evry Val D'essonne
France, Roscoff
Station Biologique de Roscoff
Carré, Wilfrid
France, Roscoff
Station Biologique de Roscoff
Ball, Steven G.
France, Villeneuve-d'ascq
Unité de Glycobiologie Structurale et Fonctionnelle Ugsf
Chaparro, Cristian
France, Perpignan
Unité Mixte de Recherche 5096
Tonon, Thierry
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Barbeyron, Tristan
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Michel, Gurvan
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Noël, Benjamin
France, Evry
Genoscope - Centre National de Séquençage
Valentin, Klaus Ulrich
Germany, Bremerhaven
Alfred-wegener-institut Helmholtz-zentrum Für Polar- Und Meeresforschung
Eliáš, Marek
Czech Republic, Ostrava
Ostravská Univerzita V Ostrave
François Artiguenave,
France, Evry
Genoscope - Centre National de Séquençage
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Evry
Université D'evry Val D'essonne
Aury, Jean Marc
France, Evry
Genoscope - Centre National de Séquençage
Barbosa-Neto, José Fernandes
France, Perpignan
Unité Mixte de Recherche 5096
Bothwell, John Henry
United Kingdom, Belfast
Queen's University Belfast
Bouget, François Yves
France, Banyuls-sur-mer
Observatoire Océanologique de Banyuls-sur-mer
France, Paris
Cnrs Centre National de la Recherche Scientifique
Brillet, Lorraine
France, Roscoff
Station Biologique de Roscoff
Cabello-Hurtado, Francisco
France, Rennes
Écosystèmes, Biodiversité, Évolution
Salvador Capella-Gutiérrez,
Spain, Barcelona
Centro de Regulacion Genomica, Barcelona
Spain, Barcelona
Universitat Pompeu Fabra Barcelona
Charrier, Bénédicte
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Cladière, Lionel
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Cock, J. Mark
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Coelho, Susana Margarida B.
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Colleoni, Christophe
France, Villeneuve-d'ascq
Unité de Glycobiologie Structurale et Fonctionnelle Ugsf
Czjzek, Mirjam
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
da Silva, Corinne D.
France, Evry
Genoscope - Centre National de Séquençage
Delage, Ludovic
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Denoeud, France
France, Evry
Genoscope - Centre National de Séquençage
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Evry
Université D'evry Val D'essonne
Deschamps, Philippe
France, Villeneuve-d'ascq
Unité de Glycobiologie Structurale et Fonctionnelle Ugsf
Dittami, Simon M.
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Norway, Oslo
Universitetet I Oslo
Gabaldón, Toni
Spain, Barcelona
Centro de Regulacion Genomica, Barcelona
Spain, Barcelona
Universitat Pompeu Fabra Barcelona
Gachon, Claire M.M.
United Kingdom, Oban
The Scottish Association for Marine Science
Groisillier, Agnès
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Hervé, Cécile
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Jabbari, Kamel
France, Evry
Genoscope - Centre National de Séquençage
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Evry
Université D'evry Val D'essonne
Katinka, Michaël Doron
France, Evry
Genoscope - Centre National de Séquençage
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Evry
Université D'evry Val D'essonne
Kloareg, Bernard
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Kowalczyk, Nathalie
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Labadie, Karine
France, Evry
Genoscope - Centre National de Séquençage
Leblanc, Catherine
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Lopez, Pascal Jean
France, Marseille
Ird Institut de Recherche Pour le Developpement
McLachlan, Deirdre H.
United Kingdom, Belfast
Queen's University Belfast
Meslet-Cladière, Laurence M.
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Moustafa, Ahmed M.
Egypt, New Cairo
American University in Cairo
Nehr, Zofia
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Nyvall-Collén, Pi
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Panaud, Olivier
France, Perpignan
Unité Mixte de Recherche 5096
Partensky, Frédéric
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Poulain, Julie
France, Evry
Genoscope - Centre National de Séquençage
Rensing, Stefan Andreas
Germany, Freiburg Im Breisgau
Universität Freiburg
Germany, Marburg
Philipps-universität Marburg
Rousvoal, Sylvie
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Samson, Gaëlle
France, Evry
Genoscope - Centre National de Séquençage
Symeonidi, Aikaterini
Germany, Freiburg Im Breisgau
Universität Freiburg
Germany, Marburg
Philipps-universität Marburg
Weissenbach, Jean S.
France, Evry
Genoscope - Centre National de Séquençage
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Evry
Université D'evry Val D'essonne
Zambounis, Antonios G.
United Kingdom, Oban
The Scottish Association for Marine Science
Greece, Thessaloniki
Centre for Research and Technology-hellas
Wincker, Patrick
France, Evry
Genoscope - Centre National de Séquençage
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Evry
Université D'evry Val D'essonne
Boyen, Catherine
France, Paris
Sorbonne Université
France, Paris
Cnrs Centre National de la Recherche Scientifique
Statistics
Citations: 321
Authors: 57
Affiliations: 21
Identifiers
Doi:
10.1073/pnas.1221259110
ISSN:
00278424
Research Areas
Food Security
Genetics And Genomics
Noncommunicable Diseases