Journal
RESEARCH IN MICROBIOLOGY
Volume 174, Issue 8, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.resmic.2023.104116
Keywords
Agaricus subrufescens; Basidiomycetes; Hybrid DNA sequencing; Chromosome-scale genome assembly
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Agaricus subrufescens, also known as the sun mushroom, has significant nutritional and medicinal value. The genome sequence of A. subrufescens provides valuable information for cultivation alternatives and genetic editing strategies to delay the browning process. The study also identified important genes and provided resources for further fungal biological and genomic studies.
Agaricus subrufescens, also known as the sun mushroom, has significant nutritional and medicinal value. However, its short shelf life due to the browning process results in post-harvest losses unless it's quickly dehydrated. This restricts its availability to consumers in the form of capsules. A genome sequence of A. subrufescens may lead to new cultivation alternatives or the application of gene editing strategies to delay the browning process. We assembled a chromosome-scale genome using a hybrid approach combining Illumina and Nanopore sequencing. The genome was assembled into 13 chromo-somes and 31 unplaced scaffolds, totaling 44.5 Mb with 96.5% completeness and 47.24% GC content. 14,332 protein-coding genes were identified, with 64.6% of the genome covered by genes and 23.41% transposable elements. The mitogenome was circularized and encoded fourteen typical mitochondrial genes. Four polyphenol oxidase (PPO) genes and the Mating-type locus were identified. Phylogenomic analysis supports the placement of A. subrufescens in the Agaricomycetes clade. This is the first available genome sequence of a strain of the sun mushroom. Results are available through a Genome Browser (https://plantgenomics.ncc.unesp.br/gen.php?id1/4Asub) and can support further fungal biological and genomic studies. (c) 2023 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved.
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