Squamanitaceae and three new species of Squamanita parasitic on Amanita basidiomes
- Author: mycolabadmin
- 2021-03-03
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Summary
This research investigated parasitic fungi that grow on other mushrooms, specifically focusing on a group called Squamanita. The scientists discovered three new species of these parasitic fungi in China and clarified their evolutionary relationships. This work helps us better understand fungal biodiversity and parasitic relationships in nature.
Impacts on everyday life:
– Improves our understanding of complex relationships between different fungi in natural ecosystems
– Helps identify and catalog new species, contributing to biodiversity knowledge
– Provides insights into parasitic strategies that could inform biological control methods
– Advances our ability to identify and classify fungi accurately
– Contributes to understanding ecological relationships in forest environments
Background
The systematic position of the enigmatically mycoparasitic genus Squamanita (Agaricales, Basidiomycota) together with Cystoderma, Phaeolepiota, Floccularia, and Leucopholiota was largely unknown. Recently they were recognized as Squamanitaceae, but previous studies used few DNA markers from a restricted sample of taxa from the family and lacked a formal taxonomic treatment.
Objective
To investigate the phylogeny of Squamanitaceae and describe three new species of Squamanita from China using morphological, multi-gene phylogenetic, and ecological data. Additionally, to examine host preferences and species delimitation within Squamanita.
Results
The study confirmed the monophyly of Squamanitaceae including five genera: Cystoderma, Phaeolepiota, Squamanita, Floccularia and Leucopholiota. Three new species from China (S. mira, S. orientalis, and S. sororcula) were described, with S. mira parasitizing Amanita kitamagotake and the other two parasitizing species from the A. sepiacea complex. Analysis revealed that ‘S. umbonata’ from the Northern hemisphere represents two species complexes containing multiple distinct species.
Conclusion
The family Squamanitaceae was formally emended to include five genera. Three new species of Squamanita were discovered and described from China, showing distinct host preferences. The study demonstrated that ‘Squamanita umbonata’ represents a complex of multiple species rather than a single taxon, requiring further investigation to fully understand its diversity and distribution patterns.
- Published in:IMA Fungus,
- Study Type:Taxonomic Research,
- Source: 10.1186/s43008-021-00057-z