Proposal of a New Family Pseudodiploösporeaceae fam. nov. (Hypocreales) Based on Phylogeny of Diploöspora longispora and Paecilomyces penicillatus
- Author: mycolabadmin
- 2022-11-24
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Summary
This research focuses on properly classifying two fungi that cause serious diseases in cultivated morel mushrooms. The scientists used genetic analysis and microscopic examination to determine that these fungi belonged to a completely new family of fungi that had been incorrectly classified before. This improved classification helps better understand these economically damaging mushroom pathogens.
Impacts on everyday life:
– Helps mushroom farmers better identify and manage crop diseases
– Improves food security by supporting commercial mushroom cultivation
– Advances scientific understanding of fungal evolution and classification
– Contributes to protecting valuable morel mushroom crops
– Supports the growing edible mushroom industry
Background
True morels (Morchella) are popular edible mushrooms with culinary and medicinal properties. Large-scale cultivation of Morchella has been achieved in China, but fungal diseases have become a major challenge for production. White mould disease caused by Paecilomyces penicillatus and pileus rot disease caused by Diploöspora longispora can result in up to 80% yield losses.
Objective
To clarify the taxonomic position and phylogenetic relationships of Diploöspora longispora and Paecilomyces penicillatus through multi-locus phylogenetic analysis and divergence time estimation, and propose appropriate taxonomic revisions.
Results
Multi-locus phylogenetic analysis revealed that D. longispora and P. penicillatus formed a distinct clade sister to Hypocreaceae within Hypocreales. Divergence time estimation showed this clade split from Hypocreaceae around 129 MYA. Based on both molecular and morphological evidence, a new family Pseudodiploösporeaceae and two new genera Pseudodiploöspora and Zelopaecilomyces were proposed. Five new combinations were introduced to properly classify these fungi.
Conclusion
The study established a new family Pseudodiploösporeaceae to accommodate the fungal pathogens previously misplaced in Diploöspora and Paecilomyces. The taxonomic revision provides a more accurate classification framework for these economically important mushroom pathogens.
- Published in:Mycology,
- Study Type:Taxonomic Study,
- Source: 10.1080/21501203.2022.2143919