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Journal ArticleDOI

Unearthing the roots of ectomycorrhizal symbioses

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TLDR
This Review discusses recent genomic studies that have revealed the adaptations that seem to be fundamental to the convergent evolution of ectomycorrhizal fungi, including the loss of some metabolic functions and the acquisition of effectors that facilitate mutualistic interactions with host plants.
Abstract
Fungal genomics studies have shown that ectomycorrhizal fungi have arisen in approximately 60 independent saprotrophic lineages In this Review, Martin and colleagues describe the functional gains and losses that have occurred during the evolution of ectomycorrhizal symbioses

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Citations
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Journal ArticleDOI

Ancestral alliances: Plant mutualistic symbioses with fungi and bacteria

TL;DR: The spectrum of plant-microbe symbioses and their evolution is reviewed, including evidence from the Rhynie Chert of the Devonian period and modern associations, and some of the molecular pathways and cellular mechanisms involved in their evolution and development are discussed.
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Interplay Between Innate Immunity and the Plant Microbiota.

TL;DR: The finding that similar molecular strategies are deployed by symbionts and pathogens to dampen immune responses is consistent with this hypothesis but implies different selective pressures on the immune system due to contrasting outcomes on plant fitness.
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Large-scale genome sequencing of mycorrhizal fungi provides insights into the early evolution of symbiotic traits.

Shingo Miyauchi, +58 more
TL;DR: This study samples ecologically dominant fungal guilds for which there were previously no symbiotic genomes available, including ectomycorrhizal Russulales, Thelephorales and Cantharellales, and shows that transitions from saprotrophy to symbiosis involve widespread losses of degrading enzymes acting on lignin and cellulose.
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The Fungal Tree of Life: from Molecular Systematics to Genome-Scale Phylogenies.

TL;DR: This article reviews the major phyla, subphyla, and classes of the kingdom Fungi and provides brief summaries of ecologies, morphologies, and exemplar taxa and examples of how molecular phylogenetics and evolutionary genomics have advanced the understanding of fungal evolution within each of the phyla and some of the major classes.
References
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Journal ArticleDOI

Arbuscular mycorrhiza: the mother of plant root endosymbioses.

TL;DR: During evolution, the genetic programme for AM has been recruited for other plant root symbioses: functional adaptation of a plant receptor kinase that is essential for AM symbiosis paved the way for nitrogen-fixing bacteria to form intracellular symbiosis with plant cells.
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The paleozoic origin of enzymatic lignin decomposition reconstructed from 31 fungal genomes

Dimitrios Floudas, +70 more
- 29 Jun 2012 - 
TL;DR: Comparative analyses of 31 fungal genomes suggest that lignin-degrading peroxidases expanded in the lineage leading to the ancestor of the Agaricomycetes, which is reconstructed as a white rot species, and then contracted in parallel lineages leading to brown rot and mycorrhizal species.
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Coevolution of roots and mycorrhizas of land plants

TL;DR: It is hypothesised that roots gradually evolved from rhizomes to provide more suitable habitats for mycorrhizal fungi and provide plants with complex branching and leaves with water and nutrients.
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Mycorrhizal ecology and evolution: the past, the present, and the future

TL;DR: Large-scale molecular surveys have provided novel insights into the diversity, spatial and temporal dynamics of mycorrhizal fungal communities, and network theory makes it possible to analyze interactions between plant-fungal partners as complex underground multi-species networks.
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Roots and associated fungi drive long-term carbon sequestration in boreal forest.

TL;DR: It is shown that 50 to 70% of stored carbon in a chronosequence of boreal forested islands derives from roots and root-associated microorganisms, suggesting an alternative mechanism for the accumulation of organic matter in boreal forests during succession in the long-term absence of disturbance.
Related Papers (5)

Convergent losses of decay mechanisms and rapid turnover of symbiosis genes in mycorrhizal mutualists.

Annegret Kohler, +62 more
- 01 Apr 2015 -