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A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
Published on: July 11, 2025
Phylogenomic systematics of Lanmaoa (Boletaceae) reveals cryptic diversity, resolves global evolutionary
Colin Domnauer1,2, Bryn T M Dentinger1,2
1School of Biological Sciences, University of Utah, Salt Lake City, Utah 84108.
Abstract:
The genus Lanmaoa is a globally distributed, economically important group of mushroom-forming fungi in the family Boletaceae containing edible and psychoactive species. Despite the growing interest in its hallucinogenic properties, the fundamental systematics of this genus remains poorly resolved due to limited taxon sampling and limited genetic characterization. This study combines a comprehensive sampling of all Lanmaoa species, including 21 type specimens, with whole genome sequencing of 53 specimens. A phylogeny of Lanmaoa is generated based upon an alignment of 1515 single-copy orthologs and recovers full statistical support at all major nodes, resolving evolutionary relationships in the genus. Phylogenomic analysis of previously unsequenced type specimens supports several taxonomic changes, including six novel combinations and the discovery of four novel species, two of which are described here-Lanmaoa fallax, sp. nov. and Lanmaoa carbonilivor, sp. nov.-resulting in a total recognition of 17 species in the genus. Genome mining of Lanmaoa asiatica fails to detect canonical biosynthetic genes associated with psilocybin or ibotenic acid production, suggesting the presence of a novel psychoactive compound. This study establishes a comprehensive genomic foundation for Lanmaoa systematics, enabling future research to more robustly explore the evolutionary history and secondary chemistry of the genus.
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