ArticleMolecular biology and evolution2018
Rapid Divergence of Genome Architectures Following the Origin of an Ectomycorrhizal Symbiosis in the Genus Amanita.
Article in Molecular biology and evolution, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 42 citations in OpenAlex.
- Transposable Element-Driven Genomic Plasticity: Unveiling the Evolutionary Mechanisms of Lifestyle Transition and Ecological Adaptation in Endophytic Fungi.Journal of fungi (Basel, Switzerland) · 2026Article
- Chromosome-scale Genome Assembly of the Most Abundant Ectomycorrhizal Fungus Cenococcum Geophilum Reveals Massive TE Expansion and RIP Defense Mechanism.Genome biology and evolution · 2026Article
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- Characterization of the five Amanita complete mitochondrial genome and the phylogenetic relationship with other Amanita fungi.BMC genomics · 2025Article
- A fusarioid fungus forms mutualistic interactions with poplar trees that resemble ectomycorrhizal symbiosis.IMA fungus · 2025Article
- The evolution of ectomycorrhizal symbiosis and host-plant switches are the main drivers for diversification of Amanitaceae (Agaricales, Basidiomycota).BMC biology · 2024Article
- Extreme overall mushroom genome expansion in Mycena s.s. irrespective of plant hosts or substrate specializations.Cell genomics · 2024Article
- Assembly collapsing versus heterozygosity oversizing: detection of homokaryotic and heterokaryoticMicrobial genomics · 2024Article
- Insights into the Ecological Diversification of the Hymenochaetales based on Comparative Genomics and Phylogenomics With an Emphasis on Coltricia.Genome biology and evolution · 2023Article
- A highly contiguous genome assembly reveals sources of genomic novelty in the symbiotic fungus Rhizophagus irregularis.G3 (Bethesda, Md.) · 2023Article
- Applying molecular and genetic methods to trees and their fungal communities.Applied microbiology and biotechnology · 2023Review
- Speciation Underpinned by Unexpected Molecular Diversity in the Mycorrhizal Fungal Genus Pisolithus.Molecular biology and evolution · 2023Article
- Genomic Comparisons of Two Armillaria Species with Different Ecological Behaviors and Their Associated Soil Microbial Communities.Microbial ecology · 2023Article
- Analysis of synonymous codon usage patterns in mitochondrial genomes of nineFrontiers in microbiology · 2023Article
- Fungi as mediators linking organisms and ecosystems.FEMS microbiology reviews · 2022Review
- Symbiont switching and trophic mode shifts in Orchidaceae.The New phytologist · 2021Article
- Genome reduction and relaxed selection is associated with the transition to symbiosis in the basidiomycete genusiScience · 2021Article
- Comparative genomics reveals dynamic genome evolution in host specialist ectomycorrhizal fungi.The New phytologist · 2021Article
- Whole-Genome and Transcriptome Sequencing ofFrontiers in microbiology · 2021Article
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Authors and funding
6 authors at 5 institutions in 6 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fungi are evolutionary shape shifters and adapt quickly to new environments. Ectomycorrhizal (EM) symbioses are mutualistic associations between fungi and plants and have evolved repeatedly and independently across the fungal tree of life, suggesting lineages frequently reconfigure genome content to take advantage of open ecological niches. To date analyses of genomic mechanisms facilitating EM symbioses have involved comparisons of distantly related species, but here, we use the genomes of three EM and two asymbiotic (AS) fungi from the genus Amanita as well as an AS outgroup to study genome evolution following a single origin of symbiosis. Our aim was to identify the defining features of EM genomes, but our analyses suggest no clear differentiation of genome size, gene repertoire size, or transposable element content between EM and AS species. Phylogenetic inference of gene gains and losses suggests the transition to symbiosis was dominated by the loss of plant cell wall decomposition genes, a confirmation of previous findings. However, the same dynamic defines the AS species A. inopinata, suggesting loss is not strictly associated with origin of symbiosis. Gene expansions in the common ancestor of EM Amanita were modest, but lineage specific and large gene family expansions are found in two of the three EM extant species. Even closely related EM genomes appear to share few common features. The genetic toolkit required for symbiosis appears already encoded in the genomes of saprotrophic species, and this dynamic may explain the pervasive, recurrent evolution of ectomycorrhizal associations.
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