Large-scale genome sequencing of mycorrhizal fungi provides insights into the early evolution of symbiotic traits
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Published:2020-10-12
Issue:1
Volume:11
Page:
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ISSN:2041-1723
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Container-title:Nature Communications
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language:en
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Short-container-title:Nat Commun
Author:
Miyauchi ShingoORCID, Kiss Enikő, Kuo Alan, Drula Elodie, Kohler Annegret, Sánchez-García Marisol, Morin Emmanuelle, Andreopoulos Bill, Barry Kerrie W., Bonito Gregory, Buée Marc, Carver Akiko, Chen Cindy, Cichocki Nicolas, Clum Alicia, Culley David, Crous Pedro W., Fauchery LaureORCID, Girlanda Mariangela, Hayes Richard D.ORCID, Kéri Zsófia, LaButti KurtORCID, Lipzen Anna, Lombard Vincent, Magnuson JonORCID, Maillard François, Murat ClaudeORCID, Nolan Matt, Ohm Robin A., Pangilinan Jasmyn, Pereira Maíra de Freitas, Perotto SilviaORCID, Peter Martina, Pfister Stephanie, Riley Robert, Sitrit Yaron, Stielow J. Benjamin, Szöllősi GergelyORCID, Žifčáková Lucia, Štursová Martina, Spatafora Joseph W., Tedersoo Leho, Vaario Lu-Min, Yamada Akiyoshi, Yan Mi, Wang Pengfei, Xu JianpingORCID, Bruns Tom, Baldrian PetrORCID, Vilgalys RytasORCID, Dunand Christophe, Henrissat BernardORCID, Grigoriev Igor V.ORCID, Hibbett David, Nagy László G., Martin Francis M.
Abstract
AbstractMycorrhizal fungi are mutualists that play crucial roles in nutrient acquisition in terrestrial ecosystems. Mycorrhizal symbioses arose repeatedly across multiple lineages of Mucoromycotina, Ascomycota, and Basidiomycota. Considerable variation exists in the capacity of mycorrhizal fungi to acquire carbon from soil organic matter. Here, we present a combined analysis of 135 fungal genomes from 73 saprotrophic, endophytic and pathogenic species, and 62 mycorrhizal species, including 29 new mycorrhizal genomes. This study samples ecologically dominant fungal guilds for which there were previously no symbiotic genomes available, including ectomycorrhizal Russulales, Thelephorales and Cantharellales. Our analyses show that transitions from saprotrophy to symbiosis involve (1) widespread losses of degrading enzymes acting on lignin and cellulose, (2) co-option of genes present in saprotrophic ancestors to fulfill new symbiotic functions, (3) diversification of novel, lineage-specific symbiosis-induced genes, (4) proliferation of transposable elements and (5) divergent genetic innovations underlying the convergent origins of the ectomycorrhizal guild.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry
Reference97 articles.
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