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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
general
The genome of Laccaria bicolor provides insights into mycorrhizal symbiosis
Nature, Volume 452, No. 7183, Year 2008
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Description
Mycorrhizal symbioses - the union of roots and soil fungi - are universal in terrestrial ecosystems and may have been fundamental to land colonization by plants. Boreal, temperate and montane forests all depend on ectomycorrhizae. Identification of the primary factors that regulate symbiotic development and metabolic activity will therefore open the door to understanding the role of ectomycorrhizae in plant development and physiology, allowing the full ecological significance of this symbiosis to be explored. Here we report the genome sequence of the ectomycorrhizal basidiomycete Laccaria bicolor (Fig. 1) and highlight gene sets involved in rhizosphere colonization and symbiosis. This 65-megabase genome assembly contains ∼20,000 predicted protein-encoding genes and a very large number of transposons and repeated sequences. We detected unexpected genomic features, most notably a battery of effector-type small secreted proteins (SSPs) with unknown function, several of which are only expressed in symbiotic tissues. The most highly expressed SSP accumulates in the proliferating hyphae colonizing the host root. The ectomycorrhizae-specific SSPs probably have a decisive role in the establishment of the symbiosis. The unexpected observation that the genome of L. bicolor lacks carbohydrate-active enzymes involved in degradation of plant cell walls, but maintains the ability to degrade non-plant cell wall polysaccharides, reveals the dual saprotrophic and biotrophic lifestyle of the mycorrhizal fungus that enables it to grow within both soil and living plant roots. The predicted gene inventory of the L. bicolor genome, therefore, points to previously unknown mechanisms of symbiosis operating in biotrophic mycorrhizal fungi. The availability of this genome provides an unparalleled opportunity to develop a deeper understanding of the processes by which symbionts interact with plants within their ecosystem to perform vital functions in the carbon and nitrogen cycles that are fundamental to sustainable plant productivity. ©2008 Nature Publishing Group.
Authors & Co-Authors
Martin, Francis M.
France, Champenoux
Centre de Recherche Grand Est-nancy
Aerts, Andrea L.
United States, Berkeley
U.s. Department of Energy Joint Genome Institute
Ahrén, Dag A.
Sweden, Lund
Lunds Universitet
Danchin, Etienne G.J.
France, Marseille
Laboratoire Architecture et Fonction Des Macromolécules Biologiques
Kohler, Annegret
France, Champenoux
Centre de Recherche Grand Est-nancy
Lindquist, Erika A.
United States, Berkeley
U.s. Department of Energy Joint Genome Institute
Salamov, Asaf A.
United States, Berkeley
U.s. Department of Energy Joint Genome Institute
Blaudez, Damien
France, Champenoux
Centre de Recherche Grand Est-nancy
Buée, Marc
France, Champenoux
Centre de Recherche Grand Est-nancy
Canbäck, Björn
Sweden, Lund
Lunds Universitet
Courty, Pierre Emmanuel
France, Champenoux
Centre de Recherche Grand Est-nancy
Coutinho, Pedro M.
France, Marseille
Laboratoire Architecture et Fonction Des Macromolécules Biologiques
Delaruelle, Christine
France, Champenoux
Centre de Recherche Grand Est-nancy
Detter, John Chris
United States, Berkeley
U.s. Department of Energy Joint Genome Institute
Deveau, Aurélie
France, Champenoux
Centre de Recherche Grand Est-nancy
Duplessis, Sébastien
France, Champenoux
Centre de Recherche Grand Est-nancy
Frey-Klett, Pascale
France, Champenoux
Centre de Recherche Grand Est-nancy
Veneault-Fourrey, Claire
France, Champenoux
Centre de Recherche Grand Est-nancy
Feussner, Ivo
Germany, Gottingen
Georg-august-universität Göttingen
Gay, Gilles
France, Saint-genes-champanelle
Centre Clermont-auvergne-rhône-alpes
Grimwood, Jane
United States, Palo Alto
Stanford University
Labbé, Jesse L.
France, Champenoux
Centre de Recherche Grand Est-nancy
Lin, Yao Cheng
Belgium, Ghent
Universiteit Gent
Le Tacon, François
France, Champenoux
Centre de Recherche Grand Est-nancy
Marmeisse, Roland
France, Saint-genes-champanelle
Centre Clermont-auvergne-rhône-alpes
Montanini, Barbara
France, Champenoux
Centre de Recherche Grand Est-nancy
Nehls, Uwe
Germany, Tubingen
Eberhard Karls Universität Tübingen
Peter, Martina
France, Champenoux
Centre de Recherche Grand Est-nancy
Switzerland, Birmensdorf
Eidgenössische Forschungsanstalt Für Wald, Schnee Und Landschaft Wsl
Quesneville, Hadi
France, Versailles
Centre de Recherche Île-de-france - Versailles-grignon
Rajashekar, Balaji
Sweden, Lund
Lunds Universitet
Rouhier, Nicolas
France, Champenoux
Centre de Recherche Grand Est-nancy
Schmutz, Jeremy
United States, Palo Alto
Stanford University
Chalot, Michel
France, Champenoux
Centre de Recherche Grand Est-nancy
Henrissat, Bernard
France, Marseille
Laboratoire Architecture et Fonction Des Macromolécules Biologiques
Kües, U.
Germany, Gottingen
Georg-august-universität Göttingen
Lucas, Susan L.
United States, Berkeley
U.s. Department of Energy Joint Genome Institute
Van de Peer, Y.
Belgium, Ghent
Universiteit Gent
Polle, Andréa
Germany, Gottingen
Georg-august-universität Göttingen
Rouzé, Pierre
Belgium, Ghent
Universiteit Gent
Sanders, Ian Robert
Switzerland, Lausanne
Université de Lausanne Unil
Stajich, Jason E.
Unknown Affiliation
Tunlid, Anders
Sweden, Lund
Lunds Universitet
Tuskan, Gerald A.
United States, Oak Ridge
Oak Ridge National Laboratory
Grigoriev, Igor V.
United States, Berkeley
U.s. Department of Energy Joint Genome Institute
Statistics
Citations: 987
Authors: 44
Affiliations: 16
Identifiers
Doi:
10.1038/nature06556
ISSN:
00280836
Research Areas
Environmental
Genetics And Genomics
Noncommunicable Diseases