Draft Genome Assembly of Floccularia luteovirens, an Edible and Symbiotic Mushroom on Qinghai-Tibet Plateau
- Author: mycolabadmin
- 2020-02-25
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Summary
Scientists have sequenced the genome of the Yellow Mushroom (Floccularia luteovirens), an important edible fungus found in the high-altitude meadows of the Tibetan Plateau. This mushroom forms beneficial partnerships with local plants and cannot yet be grown in cultivation. Understanding its genetic makeup provides crucial insights into how it survives in harsh mountain environments and why it’s valuable for local ecosystems and communities.
Impacts on everyday life:
– Helps preserve an important food and income source for Tibetan communities
– Advances understanding of how fungi help maintain healthy mountain grasslands
– Could lead to methods for cultivating this valuable mushroom
– Provides insights into how organisms adapt to high-altitude environments
– Contributes to protecting alpine meadow ecosystems
Background
Floccularia luteovirens, also known as ‘Yellow mushroom’, is an edible ectomycorrhizal fungus widely distributed in the Qinghai-Tibet Plateau alpine meadow at altitudes between 3200-4800m. It is an important food and financial source for local Tibetans and considered one of the ‘Eight Treasures’ in Qilian countryside. The mushroom forms symbiotic relationships with Kobresia humilis and plays crucial roles in the alpine meadow ecosystem, but cannot yet be artificially cultivated.
Objective
To generate and analyze the first draft genome assembly and annotation of F. luteovirens to provide genomic insights into its phylogenetic relationships, metabolic capabilities, and symbiotic traits.
Results
The assembled genome size was 28.8 Mb comprising 183 contigs with an N50 of 571 kb. A total of 8,333 protein-coding genes were predicted, with 7,999 genes assigned to protein databases. The genome contained 400 CAZymes, with Glycoside Hydrolases being most abundant. Phylogenetic analysis placed F. luteovirens in the Agaricaceae family, with divergence occurring approximately 170 million years ago. The species possessed 357 unique gene families involved in catalytic activity, binding, and membrane functions.
Conclusion
This first genome assembly of F. luteovirens provides essential genomic resources for understanding its evolution, metabolism and symbiotic capabilities. The identified CAZymes may help reveal key enzymes involved in fruiting body development and symbiosis. The genome data will benefit sustainable development of alpine meadow ecosystems and potential artificial cultivation efforts.
- Published in:G3: Genes | Genomes | Genetics,
- Study Type:Genome Report,
- Source: 10.1534/g3.120.401037