Edible Mushrooms: Genetics, Genomics, and Breeding

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Medicinals, Herbs, and Specialty Crops".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1290

Special Issue Editors

Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Interests: genetic breeding and molecular biology in edible fungi

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Guest Editor
Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Interests: fungal diseases; molecular biology of fungi

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Guest Editor
College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
Interests: cultivation physiology and genetic breeding in edible fungi
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Special Issue Information

Dear Colleagues,

Edible mushrooms exhibit remarkable morphological and genetic variability across both domesticated species with established cultivation practices and wild-harvested varieties. They play pivotal roles in numerous facets of our lives, significantly contributing to ecological balance, enhancing human health, and fostering socio-economic development. To unravel the mysteries surrounding their growth, development, and the genetic determinants of beneficial traits, molecular biology has emerged as a pivotal discipline. It can offer profound insights into the intricate genetic mechanisms regulating processes in these mushrooms, unlocking a vast treasure trove of potential innovation. Advances in genetics, genomics—particularly pan-genomics—and gene-editing technologies are presenting unprecedented opportunities to enhance agronomic traits, improve cultivation efficiency, and optimize nutritional profiles in edible mushrooms.

Our objective for this Special Issue is to publish contributions in the form of research articles, reviews, and short communications focused on the application of genetics and genomics across diverse domains related to edible mushrooms, including genetic resources, growth and development, nutrient synthesis, breeding strategies, and other pertinent areas.

Dr. Junjie Yan
Dr. Jie Chen
Prof. Dr. Mingwen Zhao
Guest Editors

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Keywords

  • edible mushrooms
  • genetics and breeding
  • functional genomics
  • comparative genomics
  • structural genomics
  • epigenomics
  • pan-genomics

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Published Papers (3 papers)

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Research

24 pages, 44836 KiB  
Article
Genomic and Transcriptomic Analysis to Explore the Biological Characteristics of Cyclocybe chaxingu
by Qiang Yang, Haiyan Song, Ge Su, Xuncheng Wang, Haijing Hu, Zhijun Zhai, Minghui Chen, Jianping Zhou, Hua Yin, Yang Gao and Dianming Hu
Horticulturae 2025, 11(4), 409; https://doi.org/10.3390/horticulturae11040409 - 11 Apr 2025
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Abstract
Cyclocybe chaxingu is an edible wood-decaying fungus widely cultivated in China, valued for its nutritional and economic significance. Despite its importance, molecular and genetic breeding studies on C. chaxingu have been limited by the lack of comprehensive genomic information. In this study, we performed [...] Read more.
Cyclocybe chaxingu is an edible wood-decaying fungus widely cultivated in China, valued for its nutritional and economic significance. Despite its importance, molecular and genetic breeding studies on C. chaxingu have been limited by the lack of comprehensive genomic information. In this study, we performed whole-genome sequencing of the type strain JAUCC1847 of C. chaxingu for the first time and conducted extensive genomic and transcriptomic analyses. We assembled a high-quality genome of the C. chaxingu strain C27, with a total length of 50.79 Mb and a GC content of 50.90%. Comparative genomic analysis revealed a close evolutionary relationship with species from the genera Agrocybe and Stropharia, suggesting a recent common ancestor. The high ANI values between C. chaxingu, Agrocybe chaxingu, and Agrocybe cylindracea indicate a close phylogenetic relationship, raising the possibility of synonymy among these strains. Genome annotation identified a rich array of 573 carbohydrate-active enzymes, highlighting the metabolic diversity of C. chaxingu, particularly in lignocellulose degradation. Comprehensive analysis of the A and B mating-type locus in C. chaxingu revealed the distribution and structural characteristics of mating-type genes, providing crucial genetic information for further studies on the reproductive biology of this species. Transcriptomic analysis revealed distinct gene expression patterns in mycelia, stipe, and cap, reflecting their functional specialization. GO and KEGG enrichment analyses demonstrated the stipe’s association with structural integrity and transport, while the cap is linked to metabolic activity, gene regulation, stress responses, and DNA repair. These insights clarify the taxonomic status of C. chaxingu, supporting its recognition within the genus Cyclocybe and providing a valuable resource for future research and breeding programs. Full article
(This article belongs to the Special Issue Edible Mushrooms: Genetics, Genomics, and Breeding)
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15 pages, 1378 KiB  
Article
Distribution of Two Mating-Type Idiomorphs in Commercially Cultivated Morchella sextelata Unveiling Unique Life Cycle of Morels
by Jingting Wang, Dezheng Zhu, Xiaobo Li, Xia Gao, Yan Zhang, Meixiu Liu, Weidong Lu, Lili Xu, Hao Yu and Xiuqing Yang
Horticulturae 2025, 11(4), 385; https://doi.org/10.3390/horticulturae11040385 - 4 Apr 2025
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Abstract
The outdoor cultivation of true morels has been successfully commercialized in China in recent years. However, unstable yields make it a high-risk business. A lack of understanding of the morel life cycle has led to chaotic spawn production processes, further affecting cultivation. In [...] Read more.
The outdoor cultivation of true morels has been successfully commercialized in China in recent years. However, unstable yields make it a high-risk business. A lack of understanding of the morel life cycle has led to chaotic spawn production processes, further affecting cultivation. In this study, the life cycle of Morchella sextelata, the most widely cultivated species of true morels, was characterized. A disproportion in the two mating-type idiomorphs, MAT1-1 and MAT1-2, was observed in the mycelia during vegetative growth, successive subcultures, and different parts of the fruiting body. Homokaryotic hyphae were found to dominate the mycelia and fruiting body of M. sextelata through the separation and detection of protoplast-regenerated single strains. The findings suggest that two homokaryotic hyphae with different mating types fuse to form heterokaryotic hyphae just before ascospore production in the life cycle of M. sextelata. The observed disproportion of mating-type idiomorphs is a primary reason for strain degeneration during spawn production. This study offers new insights into the life cycle of M. sextelata, particularly the role of mating-type distribution, which may inform strategies for improving the artificial cultivation of true morels. Full article
(This article belongs to the Special Issue Edible Mushrooms: Genetics, Genomics, and Breeding)
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15 pages, 3777 KiB  
Article
Quality Characteristics and Metabolomics Analysis of Two New Varieties of Tremella fuciformis
by Jianqiu Chen, Lingli Wei, Jiacheng Xie, Yuanyuan Zhang, Jiahui Jia, Liding Chen and Shujing Sun
Horticulturae 2025, 11(3), 273; https://doi.org/10.3390/horticulturae11030273 - 3 Mar 2025
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Abstract
Tremella fuciformis Berk., also known as white fungus and snow fungus, is one of the important edible and medicinal mushrooms in China. The quality characteristics and metabolites of different T. fuciformis varieties directly affect the stability of their processed products. In this study, [...] Read more.
Tremella fuciformis Berk., also known as white fungus and snow fungus, is one of the important edible and medicinal mushrooms in China. The quality characteristics and metabolites of different T. fuciformis varieties directly affect the stability of their processed products. In this study, two new varieties of Tremella fuciformis, namely ’TYH-SD1’ (yellow) and ’TWH-SD2’ (white), which were obtained by the team through single-spore crossbreeding and its control varieties Tr21 (yellow) and Tr01 (white), were used as test materials. The characteristics and nutritional quality of the four varieties of substrates were comparatively analyzed, while metabolomics was employed to investigate the differences in flavor substances. The results demonstrate that TYH-SD1 and TWH-SD2 had a higher rehydration rate and faster rehydration speed compared with the control strains Tr21 and Tr01, with a smaller stem and higher yield. Notably, TWH-SD2 had a 29.06% increase in its rehydration rate and it had higher contents of crude polysaccharide and vitamin D3. The surface of TYH-SD1 ear pieces exhibited a porous structure with a larger pore size and the surface of TWH-SD2 ear pieces displayed a surface characterized by connected gully-like protrusions and fewer indentations, which were significantly different from that of Tr21 and Tr01 ear pieces. The textural analysis shows that TYH-SD1 and TWH-SD2 ear pieces were softer and more elastic, with greater cohesion and recovery, indicating that they had high tensile and deformation recovery ability. Metabolomics analysis revealed that the relative content of aldehydes in the volatile flavor substances TYH-SD1 and TWH-SD2 was high in n-alpha-aldehyde, nonanaldehyde, and n-pentanal. The relative content of alkanes in TYH-SD1 was second only to that of aldehydes, with decane having the highest content, contributing to its more almond aroma, fruity aroma, and fat aroma. TWH-SD2 exhibited the highest concentration of alcohols, accounting for 43.57%, which may result in a clear, mushroom, and lipid odor. The above results will provide theoretical basis for the further production, processing, and application of the new varieties. Full article
(This article belongs to the Special Issue Edible Mushrooms: Genetics, Genomics, and Breeding)
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