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Title

Genomic analysis enlightens agaricales lifestyle evolution and increasing peroxidase diversity

AuthorsRuiz-Dueñas, F. J. CSIC ORCID ; Barrasa González, José María; Sánchez-García, Marisol; Camarero, Susana CSIC ORCID ; Miyauchi, Shingo; Serrano, Ana; Linde, Dolores CSIC ORCID ; Babiker, Rashid; Drula, Elodie; Ayuso-Fernández, Iván CSIC ORCID; Pacheco, Remedios CSIC; Padilla, Guillermo CSIC ; Ferreira, Patricia CSIC ORCID; Barriuso, Jorge CSIC ORCID ; Kellner, H.; Castanera, Raúl; Alfaro, Manuel; Ramírez, Lucía; Pisabarro, Antonio G.; Riley, Robert; Kuo, Alan; Andreopoulos, William; LaButti, Kurt M.; Pangilinan, Jasmyn; Tritt, Andrew; Lipzen, Anna; He, Guifen; Yan, Mi; Ng, Vivian; Grigoriev, Igor V.; Cullen, Daniel; Martin, Francis; Rosso, Marie-Noëlle; Henrissat, Bernard; Hibbett, David S.; Martínez, Ángel T. CSIC ORCID
Issue Date19-Nov-2020
PublisherSociety for Molecular Biology and Evolution
CitationMolecular Biology and Evolution 38 (4) 1428–1446 (2021)
AbstractAs actors of global carbon cycle, Agaricomycetes (Basidiomycota) have developed complex enzymatic machineries that allow them to decompose all plant polymers, including lignin. Among them, saprotrophic Agaricales are characterized by an unparalleled diversity of habitats and lifestyles. Comparative analysis of 52 Agaricomycetes genomes (14 of them sequenced de novo) reveals that Agaricales possess a large diversity of hydrolytic and oxidative enzymes for lignocellulose decay. Based on the gene families with the predicted highest evolutionary rates -namely cellulose-binding CBM1, glycoside hydrolase GH43, lytic polysaccharide monooxygenase AA9, class-II peroxidases, glucose-methanol-choline oxidase/dehydrogenases, laccases, and unspecific peroxygenases- we reconstructed the lifestyles of the ancestors that led to the extant lignocellulose-decomposing Agaricomycetes. The changes in the enzymatic toolkit of ancestral Agaricales are correlated with the evolution of their ability to grow not only on wood but also on leaf-litter and decayed wood, with grass-litter decomposers as the most recent eco-physiological group. In this context, the above families were analyzed in detail in connection with lifestyle diversity. Peroxidases appear as a central component of the enzymatic toolkit of saprotrophic Agaricomycetes, consistent with their essential role in lignin degradation and high evolutionary rates. This includes not only expansions/losses in peroxidase genes common to other basidiomycetes, but also the widespread presence in Agaricales (and Russulales) of new peroxidases types not found in wood-rotting Polyporales, and other Agaricomycetes orders. Therefore, we analyzed the peroxidase evolution in Agaricomycetes by ancestral-sequence reconstruction revealing several major evolutionary pathways, and mapped the appearance of the different enzyme types in a time-calibrated species tree.
Description19 p.-6 fig.
Publisher version (URL)https://doi.org/10.1093/molbev/msaa301
URIhttp://hdl.handle.net/10261/228763
DOI10.1093/molbev/msaa301
ISSN0737-4038
E-ISSN1537-1719
Appears in Collections:(CIB) Artículos

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