Hybrid Genome Assembly and Gene Repertoire of the Root Endophyte Clitopilus hobsonii QYL-10 (Entolomataceae, Agaricales, Basidiomycetes)

Clitopilus hobsonii (Entolomataceae, Agaricales, Basidiomycetes) is a common soil saprotroph. There is also evidence that C. hobsonii can act as a root endophyte benefitting tree growth. Here, we report the genome assembly of C. hobsonii QYL-10, isolated from ectomycorrhizal root tips of Quercus lyrata. The genome size is 36.93 Mb, consisting of 13 contigs (N50 = 3.3 Mb) with 49.2% GC content. Of them, 10 contigs approached the length of intact chromosomes, and three had telomeres at one end only. BUSCO analysis reported a completeness score of 98.4%, using Basidiomycota_odb10 lineage data. Combining ab-initio, RNA-seq data, and homology-based predictions, we identified 12,710 protein-coding genes. Approximately, 1.43 Mb of transposable elements (3.88% of the assembly), 36 secondary metabolite biosynthetic gene clusters, and 361 genes encoding putative carbohydrate-active enzymes were identified. This genomic resource will allow functional studies aimed to characterize the symbiotic interactions between C. hobsonii and its host trees and will also provide a valuable foundation for further research on comparative genomics of the Entolomataceae.

Abstract licence: CC BY-NC-ND

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