Extreme overall mushroom genome expansion in Mycena s.s. irrespective of plant hosts or substrate specializations
Abstrak
Summary: 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.
Topik & Kata Kunci
Penulis (28)
Christoffer Bugge Harder
Shingo Miyauchi
Máté Virágh
Alan Kuo
Ella Thoen
Bill Andreopoulos
Dabao Lu
Inger Skrede
Elodie Drula
Bernard Henrissat
Emmanuelle Morin
Annegret Kohler
Kerrie Barry
Kurt LaButti
Asaf Salamov
Anna Lipzen
Zsolt Merényi
Botond Hegedüs
Petr Baldrian
Martina Stursova
Hedda Weitz
Andy Taylor
Maxim Koriabine
Emily Savage
Igor V. Grigoriev
László G. Nagy
Francis Martin
Håvard Kauserud
Akses Cepat
- Tahun Terbit
- 2024
- Sumber Database
- DOAJ
- DOI
- 10.1016/j.xgen.2024.100586
- Akses
- Open Access ✓