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Title

Gene family expansions and transcriptome signatures uncover fungal adaptations to wood decay

AuthorsHage, Hayat; Miyauchi, Shingo; Virágh, Máté; Drula, Elodie; Min, Byoungnam; Chaduli, Delphine; Navarro, David; Favel, Anne; Norest, Manon; Lesage-Meessen, Laurence; Bálint, Balázs; Merényi, Z.; Eugenio, Laura I. de ; Morin, Emmanuelle; Martínez, Ángel T. CSIC ORCID ; Baldrian, Petr; Stursová, Martina; Martínez, María Jesús CSIC ORCID ; Novotny, Cenek; Magnuson, Jon K.; Spatafora, Joey W.; Maurice, Sundy; Pangilinan, Jazmyn; Andreopoulos, William; LaButti, Kurt M.; Hundley, Hope; Na, Hyunsoo; Kuo, Alan; Barry, Kerrie; Lipzen, Anna; Henrissat, Bernard; Riley, Robert; Ahrendt, Steven; Nagy, Lazslo G.; Grigoriev, Igor V.; Martin, Francis; Rosso, Marie-Noëlle
KeywordsBiodiversity
CAZymes
Phylogenomics
Fungal ecology
Lignocellulose
Plant cell wall
Wood decay
Issue Date4-Feb-2021
PublisherSociety for Applied Microbiology
CitationEnvironmental Microbiology 23 (10) 5716-5732 (2021)
AbstractBecause they comprise some of the most efficient wood-decayers, Polyporales fungi impact carbon cycling in forest environment. Despite continuous discoveries on the enzymatic machinery involved in wood decomposition, the vision on their evolutionary adaptation to wood decay and genome diversity remains incomplete.
We combined the genome sequence information from 50 Polyporales species, including 26 newly sequenced genomes and sought for genomic and functional adaptations to wood decay through the analysis of genome composition and transcriptome responses to different carbon sources.The genomes of Polyporales from different phylogenetic clades showed poor conservation in macrosynteny, indicative of genome rearrangements. We observed different gene family expansion/contraction histories for plant cell wall degrading enzymes in core polyporoids and phlebioids and captured expansions for genes involved in signaling and regulation in the lineages of white rotters. Furthermore, we identified conserved cupredoxins, thaumatin-like proteins and Lytic Polysaccharide Monooxygenases with a yet uncharacterized appended module as new candidate players in wood decomposition.Given the current need for enzymatic toolkits dedicated to the transformation of renewable carbon sources, the observed genomic diversity among Polyporales strengthens the relevance of mining Polyporales biodiversity to understand the molecular mechanisms of wood decay.
Description17 p.-7 fig.
Publisher version (URL)https://doi.org/10.1111/1462-2920.15423
URIhttp://hdl.handle.net/10261/230199
DOI10.1111/1462-2920.15423
ISSN1462-2912
E-ISSN1462-2920
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