Biology
Document Type
Article
Abstract
Species of the genus Umbelopsis are ubiquitous soil saprotrophic fungi known for their role in ecological nutrient cycling and biotechnological potential in lipid production. Here, we present the genome assembly of Umbelopsis sp. strain THIF13, which is characterized by its capability to produce carbonyl sulfide. Using PacBio Sequel long-read data, a high-quality genome assembly was generated comprising 18 contigs totaling 27.2 Mb, which is larger than other Umbelopsis genomes, with an N50 of 1.77 Mb. Notably, 16 contigs were flanked by telomeric repeats at both ends. The assembly showed high completeness, with 98.1% complete Benchmarking Universal Single-Copy Orthologs and 11.15% repetitive sequences. Multilocus phylogenetic analysis clearly identified the strain as Umbelopsis nana; thus, this study reports the first publicly available genome sequence for this species. Functional annotation with Funannotate predicted 9,068 genes. This genomic resource fills a gap in the Umbelopsis phylogeny and provides a foundation for elucidating the evolutionary and functional diversity of the genus. © The Author(s) 2026. Published by Oxford University Press on behalf of The Genetics Society of America.
Publication Title
G3 (Bethesda, Md.)
Publication Date
4-2026
Volume
16
Issue
4
ISSN
2160-1836
DOI
10.1093/g3journal/jkag022
Keywords
Umbelopsis nana, forest ecosystem, functional annotation, genome, genome assembly, lipid metabolism, PacBio, phylogenetic analysis
Repository Citation
Iizuka, Ryuka; Suzuki, Tomohiro; Watanabe, Nozomu; Tabima, Javier F.; Hibbett, David; Katayama, Yoko; and Yoshida, Makoto, "First high-quality genome assembly of Umbelopsis nana isolated from forest soil" (2026). Biology. 449.
https://commons.clarku.edu/faculty_biology/449
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Conditions
Iizuka, R., Suzuki, T., Watanabe, N., Tabima, J. F., Hibbett, D., Katayama, Y., & Yoshida, M. (2026). First high-quality genome assembly of Umbelopsis nana isolated from forest soil. G3: Genes, Genomes, Genetics, 16(4), jkag022.
