Fungal Diversity and Systematics in the Digital Era

A special issue of Journal of Fungi (ISSN 2309-608X). This special issue belongs to the section "Fungal Evolution, Biodiversity and Systematics".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 15257

Special Issue Editors

Facultad de Ciencias Biológicas y Agropecuarias, Peñuela, Universidad Veracruzana, Amatlán de los Reyes 94945, Mexico
Interests: fungal diversity; molecular systematics; taxonomy and phylogenetics; mushroom cultivation

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Guest Editor
Thailand National Science and Technology Development Agency, Pathum Thani, Thailand
Interests: diversity and biogeography of basidiomycota; metabarcoding; fungal ecology; ectomycorrhiza

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Guest Editor
School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
Interests: ascomycetes taxonomy; fungal evolution; plant pathology; phylogenomics; Sordariomycetes
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Special Issue Information

Dear Colleagues,

As one of the important branches of the tree of life, fungi play a vital role in various ecosystems. They are essential for nutrient cycling and have beneficial interaction with many groups of organisms. Adversely, they can cause serious human, animal, and plant diseases. Although fungi have biotechnological potential, however, they remain relatively understudied. Approximately less than 5% of the estimated two to nearly four million species are formally described. Nowadays, the number of published new species has greatly increased. Species delimitation and classification depend to a large extent on the adoption of molecular techniques. Therefore, more studies on the biodiversity and systematics of fungi would offer us a better understanding of the diversity, ecology, and biogeography of fungi, which can be applied to the future conservation of fungi and ecological niches. 

This special issue entitled "Fungal diversity and systematics in the digital era", aims to highlight current research on fungal diversity and systematics in all groups of Fungi. Both reviews and research articles are welcome.

Dr. Jie Chen
Dr. Komsit Wisitrassameewong
Prof. Dr. Sajeewa Maharachchikumbura
Guest Editors

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Published Papers (7 papers)

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Research

29 pages, 4230 KiB  
Article
Diversity of Arbuscular Mycorrhizal Fungi in Distinct Ecosystems of the North Caucasus, a Temperate Biodiversity Hotspot
by Andrey P. Yurkov, Alexey A. Kryukov, Anastasiia O. Gorbunova, Tatyana R. Kudriashova, Anastasia I. Kovalchuk, Anastasia I. Gorenkova, Ekaterina M. Bogdanova, Yuri V. Laktionov, Peter M. Zhurbenko, Yulia V. Mikhaylova, Roman K. Puzanskiy, Tatyana N. Bagrova, Oleg I. Yakhin, Alexander V. Rodionov and Maria F. Shishova
J. Fungi 2024, 10(1), 11; https://doi.org/10.3390/jof10010011 - 24 Dec 2023
Viewed by 1502
Abstract
Background: Investigations that are focused on arbuscular mycorrhizal fungus (AMF) biodiversity is still limited. The analysis of the AMF taxa in the North Caucasus, a temperate biodiversity hotspot, used to be limited to the genus level. This study aimed to define the AMF [...] Read more.
Background: Investigations that are focused on arbuscular mycorrhizal fungus (AMF) biodiversity is still limited. The analysis of the AMF taxa in the North Caucasus, a temperate biodiversity hotspot, used to be limited to the genus level. This study aimed to define the AMF biodiversity at the species level in the North Caucasus biotopes. Methods: The molecular genetic identification of fungi was carried out with ITS1 and ITS2 regions as barcodes via sequencing using Illumina MiSeq, the analysis of phylogenetic trees for individual genera, and searches for operational taxonomic units (OTUs) with identification at the species level. Sequences from MaarjAM and NCBI GenBank were used as references. Results: We analyzed >10 million reads in soil samples for three biotopes to estimate fungal biodiversity. Briefly, 50 AMF species belonging to 20 genera were registered. The total number of the AM fungus OTUs for the “Subalpine Meadow” biotope was 171/131, that for “Forest” was 117/60, and that for “River Valley” was 296/221 based on ITS1/ITS2 data. The total number of the AM fungus species (except for virtual taxa) for the “Subalpine Meadow” biotope was 24/19, that for “Forest” was 22/13, and that for “River Valley” was 28/24 based on ITS1/ITS2 data. Greater AMF diversity, as well as number of OTUs and species, in comparison with that of forest biotopes, characterized valley biotopes (disturbed ecosystems; grasslands). The correlation coefficient between “Percentage of annual plants” and “Glomeromycota total reads” r = 0.76 and 0.81 for ITS1 and ITS2, respectively, and the correlation coefficient between “Percentage of annual plants” and “OTUs number (for total species)” was r = 0.67 and 0.77 for ITS1 and ITS2, respectively. Conclusion: High AMF biodiversity for the river valley can be associated with a higher percentage of annual plants in these biotopes and the active development of restorative successional processes. Full article
(This article belongs to the Special Issue Fungal Diversity and Systematics in the Digital Era)
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24 pages, 3887 KiB  
Article
Morphology and Molecular Phylogeny Reveal Five New Species of Laccaria (Hydnangiaceae, Agaricales) from Southern China
by Ming Zhang, Xue-Lian Gao, Li-Qin Mu and Wang-Qiu Deng
J. Fungi 2023, 9(12), 1179; https://doi.org/10.3390/jof9121179 - 8 Dec 2023
Cited by 3 | Viewed by 1418
Abstract
The genus Laccaria is a type of cosmopolitan and ecologically important fungal group. Members can form ectomycorrhizal associations with numerous trees, and some species are common edible fungi in local markets. Although some new species from China are recently published, the species diversity [...] Read more.
The genus Laccaria is a type of cosmopolitan and ecologically important fungal group. Members can form ectomycorrhizal associations with numerous trees, and some species are common edible fungi in local markets. Although some new species from China are recently published, the species diversity of Laccaria is still unclear in China. In this study, some samples of Laccaria were collected from southern China, and morphological characteristics and phylogenetic analyses based on the multilocus dataset of ITS-LSU-tef1-rpb2 confirmed five new species. Laccaria miniata, L. nanlingensis and L. neovinaceoavellanea were collected from subtropical broad-leaved forests, and L. rufobrunnea and L. umbilicata were collected from subtropical mixed forests of southwest China. Full descriptions, illustrations, comparisons with similar species and phylogenetic analysis are provided. Full article
(This article belongs to the Special Issue Fungal Diversity and Systematics in the Digital Era)
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18 pages, 7398 KiB  
Article
Compensatory Base Changes in ITS2 Secondary Structure Alignment, Modelling, and Molecular Phylogeny: An Integrated Approach to Improve Species Delimitation in Tulasnella (Basidiomycota)
by Yuliana Jiménez-Gaona, Oscar Vivanco-Galván, Darío Cruz, Angelo Armijos-Carrión and Juan Pablo Suárez
J. Fungi 2023, 9(9), 894; https://doi.org/10.3390/jof9090894 - 31 Aug 2023
Cited by 1 | Viewed by 1029
Abstract
Background: The delimitation of species of Tulasnella has been extensively studied, mainly at the morphological (sexual and asexual states) and molecular levels—showing ambiguity between them. An integrative species concept that includes characteristics such as molecular, ecology, morphology, and other information is crucial for [...] Read more.
Background: The delimitation of species of Tulasnella has been extensively studied, mainly at the morphological (sexual and asexual states) and molecular levels—showing ambiguity between them. An integrative species concept that includes characteristics such as molecular, ecology, morphology, and other information is crucial for species delimitation in complex groups such as Tulasnella. Objectives: The aim of this study is to test evolutionary relationships using a combination of alignment-based and alignment-free distance matrices as an alternative molecular tool to traditional methods, and to consider the secondary structures and CBCs from ITS2 (internal transcribed spacer) sequences for species delimitation in Tulasnella. Methodology: Three phylogenetic approaches were plotted: (i) alignment-based, (ii) alignment-free, and (iii) a combination of both distance matrices using the DISTATIS and pvclust libraries from an R package. Finally, the secondary structure consensus was modeled by Mfold, and a CBC analysis was obtained to complement the species delimitation using 4Sale. Results and Conclusions: The phylogenetic tree results showed delimited monophyletic clades in Tulasnella spp., where all 142 Tulasnella sequences were divided into two main clades A and B and assigned to seven species (T. asymmetrica, T. andina, T. eichleriana ECU6, T. eichleriana ECU4 T. pinicola, T. violea), supported by bootstrap values from 72% to 100%. From the 2D secondary structure alignment, three types of consensus models with helices and loops were obtained. Thus, T. albida belongs to type I; T. eichleriana, T. tomaculum, and T. violea belong to type II; and T. asymmetrica, T. andina, T. pinicola, and T. spp. (GER) belong to type III; each type contains four to six domains, with nine CBCs among these that corroborate different species. Full article
(This article belongs to the Special Issue Fungal Diversity and Systematics in the Digital Era)
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32 pages, 16662 KiB  
Article
Four Novel Species and Two New Records of Boletes from India
by Kanad Das, Aniket Ghosh, Dyutiparna Chakraborty, Sudeshna Datta, Ishika Bera, Ranjith Layola MR, Farheen Banu, Alfredo Vizzini and Komsit Wisitrassameewong
J. Fungi 2023, 9(7), 754; https://doi.org/10.3390/jof9070754 - 17 Jul 2023
Cited by 4 | Viewed by 1500
Abstract
Repeated macrofungal explorations, followed by thorough examination of species through morphology and molecular phylogeny, have made it clear that European and American names of wild mushrooms were inadvertently misapplied quite often to Asian lookalikes by mycologists/taxonomists in the past. Therefore, in order to [...] Read more.
Repeated macrofungal explorations, followed by thorough examination of species through morphology and molecular phylogeny, have made it clear that European and American names of wild mushrooms were inadvertently misapplied quite often to Asian lookalikes by mycologists/taxonomists in the past. Therefore, in order to reveal this mushroom treasure, in recent years, taxonomical research on wild mushrooms has been intensified in Asian countries, including India, by undertaking a combined approach of morpho-taxonomy and multigene molecular phylogeny. Boletoid mushrooms (Boletaceae) are no exception. While working on boletoid mushrooms of the Indian Himalayas, authors recently came across six interesting species of boletoid mushrooms. In the present communication, four novel species, namely Leccinellum binderi, Cyanoboletus paurianus, Xerocomus uttarakhandae, and Xerocomellus himalayanus, are established based on morphology and molecular phylogenetic estimations. Moreover, Cyanoboletus macroporus and Xerocomus fraternus are also reported here for the first time in India. Full article
(This article belongs to the Special Issue Fungal Diversity and Systematics in the Digital Era)
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35 pages, 10520 KiB  
Article
Phylogeny, Taxonomy and Evolutionary Trade-Offs in Reproductive Traits of Gomphoid Fungi (Gomphaceae, Gomphales)
by Xue-** Fan, Jian-Wei Liu and Zhuliang Yang
J. Fungi 2023, 9(6), 626; https://doi.org/10.3390/jof9060626 - 29 May 2023
Cited by 3 | Viewed by 1515
Abstract
Although functional ecology is a well-established field, our understanding of the evolutionary and ecological significance of the reproductive traits in macrofungi is still limited. Here, we reconstructed a phylogeny tree of gomphoid fungi in the narrower sense, including the species of the genera [...] Read more.
Although functional ecology is a well-established field, our understanding of the evolutionary and ecological significance of the reproductive traits in macrofungi is still limited. Here, we reconstructed a phylogeny tree of gomphoid fungi in the narrower sense, including the species of the genera Gomphus and Turbinellus and used it to uncover the evolution of reproductive traits. Our analyses indicated that fungal fruit bodies and spores did not enlarge at a steady rate over time. Early gomphoid fungi essentially maintained their fruit body size, spore size and spore shape through the Mesozoic. In the Cenozoic, gomphoid fungi acquired significantly larger and more spherical spores by simultaneously expanding in length and width, with the fruit body size first decreasing and then enlarging. We argue that these trade-offs were driven by the effect of biological extinction and the dramatic climate changes of the Cenozoic. Gomphoid fungi initially increased in spore size and fruit body number as extinction survivors filled vacant niches. Both fruit bodies and spores eventually became larger as ecosystems saturated and competition intensified. One new species of Gomphus and nine new species of Turbinellus are described. Full article
(This article belongs to the Special Issue Fungal Diversity and Systematics in the Digital Era)
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22 pages, 110107 KiB  
Article
Taxonomy and Phylogeny of Cystolepiota (Agaricaceae, Agaricales): New Species, New Combinations and Notes on the C. seminuda Complex
by Hua Qu, Ulrike Damm, Ya-Jun Hou and Zai-Wei Ge
J. Fungi 2023, 9(5), 537; https://doi.org/10.3390/jof9050537 - 30 Apr 2023
Cited by 2 | Viewed by 3794
Abstract
Species of Cystolepiota are known as diminutive lepiotaceous fungi with a worldwide distribution. Previous studies revealed that Cystolepiota is not monophyletic and preliminary DNA sequence data from recent collections suggested that several new species exist. Based on multi-locus DNA sequence data (the nuc [...] Read more.
Species of Cystolepiota are known as diminutive lepiotaceous fungi with a worldwide distribution. Previous studies revealed that Cystolepiota is not monophyletic and preliminary DNA sequence data from recent collections suggested that several new species exist. Based on multi-locus DNA sequence data (the nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2, ITS; the D1–D2 domains of nuc 28S rDNA, LSU; the most variable region of the second-largest subunit of RNA polymerase II, rpb2 and a portion of the translation–elongation factor 1-α. tef1), C. sect. Pulverolepiota forms a distinct clade separating from Cystolepiota. Therefore, the genus Pulverolepiota was resurrected and two combinations, P. oliveirae and P. petasiformis were proposed. With the integration of morphological characteristics, multi-locus phylogeny, and information on geography and habitat, two new species, viz. C. pseudoseminuda and C. pyramidosquamulosa, are described and C. seminuda was revealed to be a species complex containing at least three species, viz. C. seminuda, C. pseudoseminuda, and Melanophyllum eryei. In addition, C. seminuda was re-circumscribed and neo-typified based on recent collections. Full article
(This article belongs to the Special Issue Fungal Diversity and Systematics in the Digital Era)
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41 pages, 8161 KiB  
Article
Taxonomy and Phylogeny of Fungi Associated with Mangifera indica from Yunnan, China
by Er-Fu Yang, Samantha C. Karunarathna, Dong-Qin Dai, Steven L. Stephenson, Abdallah M. Elgorban, Salim Al-Rejaie, Yin-Ru **ong, Itthayakorn Promputtha, Milan C. Samarakoon and Saowaluck Tibpromma
J. Fungi 2022, 8(12), 1249; https://doi.org/10.3390/jof8121249 - 26 Nov 2022
Cited by 8 | Viewed by 3067
Abstract
During investigations of saprobic fungi associated with mango (Mangifera indica) in Baoshan and Honghe of Yunnan Province (China), fungal taxa belonging to the orders Botryosphaeriales, Calosphaeriales, Chaetothyriales, Diaporthales, and Xylariales were recorded. Morphological examinations coupled with phylogenetic analyses of multigene sequences [...] Read more.
During investigations of saprobic fungi associated with mango (Mangifera indica) in Baoshan and Honghe of Yunnan Province (China), fungal taxa belonging to the orders Botryosphaeriales, Calosphaeriales, Chaetothyriales, Diaporthales, and Xylariales were recorded. Morphological examinations coupled with phylogenetic analyses of multigene sequences (ITS, LSU, SSU, tef1-α, rpb1, rpb2, β-tubulin and CAL) were used to identify the fungal taxa. A new genus viz. Mangifericola, four new species viz. Cyphellophora hongheensis, Diaporthe hongheensis, Hypoxylon hongheensis, and Mangifericola hongheensis, four new host and geographical records viz. Aplosporella artocarpi, Hypomontagnella monticulosa, Paraeutypella citricola and Pleurostoma ootheca, and two new collections of Lasiodiplodia are reported. Full article
(This article belongs to the Special Issue Fungal Diversity and Systematics in the Digital Era)
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