Dataset Information

Extreme overall mushroom genome expansion in Mycena s.s. irrespective of plant hosts or substrate specializations.

ABSTRACT: Mycena s.s. is a ubiquitous mushroom genus whose members degrade multiple dead plant substrates and opportunistically invade living plant roots. Having sequenced the nuclear genomes of 24 Mycena species, we find them to defy the expected patterns for fungi based on both their traditionally perceived saprotrophic ecology and substrate specializations. Mycena displayed massive genome expansions overall affecting all gene families, driven by novel gene family emergence, gene duplications, enlarged secretomes encoding polysaccharide degradation enzymes, transposable element (TE) proliferation, and horizontal gene transfers. Mainly due to TE proliferation, Arctic Mycena species display genomes of up to 502 Mbp (2-8× the temperate Mycena), the largest among mushroom-forming Agaricomycetes, indicating a possible evolutionary convergence to genomic expansions sometimes seen in Arctic plants. Overall, Mycena show highly unusual, varied mosaic-like genomic structures adaptable to multiple lifestyles, providing genomic illustration for the growing realization that fungal niche adaptations can be far more fluid than traditionally believed.

SUBMITTER: Harder CB

PROVIDER: S-EPMC11293592 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature

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Extreme overall mushroom genome expansion in Mycena s.s. irrespective of plant hosts or substrate specializations.

Harder Christoffer Bugge CB Miyauchi Shingo S Virágh Máté M Kuo Alan A Thoen Ella E Andreopoulos Bill B Lu Dabao D Skrede Inger I Drula Elodie E Henrissat Bernard B Morin Emmanuelle E Kohler Annegret A Barry Kerrie K LaButti Kurt K Salamov Asaf A Lipzen Anna A Merényi Zsolt Z Hegedüs Botond B Baldrian Petr P Stursova Martina M Weitz Hedda H Taylor Andy A Koriabine Maxim M Savage Emily E Grigoriev Igor V IV Nagy László G LG Martin Francis F Kauserud Håvard H

Cell genomics 20240627 7

Mycena s.s. is a ubiquitous mushroom genus whose members degrade multiple dead plant substrates and opportunistically invade living plant roots. Having sequenced the nuclear genomes of 24 Mycena species, we find them to defy the expected patterns for fungi based on both their traditionally perceived saprotrophic ecology and substrate specializations. Mycena displayed massive genome expansions overall affecting all gene families, driven by novel gene family emergence, gene duplications, enlarged ...[more]

PMID: 38942024

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Dataset Information

Extreme overall mushroom genome expansion in Mycena s.s. irrespective of plant hosts or substrate specializations.

Publications

Extreme overall mushroom genome expansion in Mycena s.s. irrespective of plant hosts or substrate specializations.

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