# First high-quality genome assembly of Umbelopsis nana isolated from forest soil

## TL;DR

This paper presents the first high-quality genome assembly of the soil fungus Umbelopsis nana, offering insights into its ecological and biotechnological potential.

## Contribution

The study provides the first publicly available genome sequence for Umbelopsis nana, filling a gap in the genus' phylogeny.

## Key findings

- The genome assembly consists of 18 contigs totaling 27.2 Mb with an N50 of 1.77 Mb.
- 16 contigs were flanked by telomeric repeats, and the assembly showed 98.1% complete Benchmarking Universal Single-Copy Orthologs.
- Functional annotation predicted 9,068 genes, offering a foundation for studying the genus' evolutionary and functional diversity.

## 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.