Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous Taxa

Culture techniques are vital in both traditional and modern fungal taxonomy. Establishing sexual–asexual links and synanamorphs, extracting DNA and secondary metabolites are mainly based on cultures. However, it is widely accepted that a large number of species are not sporulating in nature while ot...

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Main Authors: Nalin N. Wijayawardene, Mohammad Bahram, Iván Sánchez-Castro, Dong-Qin Dai, Kahandawa G. S. U. Ariyawansa, Udeni Jayalal, Nakarin Suwannarach, Leho Tedersoo
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/7/9/703
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author Nalin N. Wijayawardene
Mohammad Bahram
Iván Sánchez-Castro
Dong-Qin Dai
Kahandawa G. S. U. Ariyawansa
Udeni Jayalal
Nakarin Suwannarach
Leho Tedersoo
author_facet Nalin N. Wijayawardene
Mohammad Bahram
Iván Sánchez-Castro
Dong-Qin Dai
Kahandawa G. S. U. Ariyawansa
Udeni Jayalal
Nakarin Suwannarach
Leho Tedersoo
author_sort Nalin N. Wijayawardene
collection DOAJ
description Culture techniques are vital in both traditional and modern fungal taxonomy. Establishing sexual–asexual links and synanamorphs, extracting DNA and secondary metabolites are mainly based on cultures. However, it is widely accepted that a large number of species are not sporulating in nature while others cannot be cultured. Recent ecological studies based on culture-independent methods revealed these unculturable taxa, i.e., dark taxa. Recent fungal diversity estimation studies suggested that environmental sequencing plays a vital role in discovering missing species. However, Sanger sequencing is still the main approach in determining DNA sequences in culturable species. In this paper, we summarize culture-based and culture-independent methods in the study of ascomycetous taxa. High-throughput sequencing of leaf endophytes, leaf litter fungi and fungi in aquatic environments is important to determine dark taxa. Nevertheless, currently, naming dark taxa is not recognized by the ICN, thus provisional naming of them is essential as suggested by several studies.
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spelling doaj.art-a531fdb3dab74ba9b8aa2f4e70875e212023-11-22T13:47:40ZengMDPI AGJournal of Fungi2309-608X2021-08-017970310.3390/jof7090703Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous TaxaNalin N. Wijayawardene0Mohammad Bahram1Iván Sánchez-Castro2Dong-Qin Dai3Kahandawa G. S. U. Ariyawansa4Udeni Jayalal5Nakarin Suwannarach6Leho Tedersoo7Centre for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, ChinaDepartment of Ecology, Swedish University of Agricultural Sciences, Ulls väg 16, 756 51 Uppsala, SwedenDepartamento de Microbiología, Campus de Fuentenueva, Universidad de Granada, 18071 Granada, SpainCentre for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, ChinaDepartment of Plant Sciences, Faculty of Science, University of Colombo, Colombo 00300, Sri LankaDepartment of Natural Resources, Sabaragamuwa University of Sri Lanka, Belihuloya 70140, Sri LankaResearch Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, ThailandMycology and Microbiology Center, University of Tartu, 14A Ravila, 50411 Tartu, EstoniaCulture techniques are vital in both traditional and modern fungal taxonomy. Establishing sexual–asexual links and synanamorphs, extracting DNA and secondary metabolites are mainly based on cultures. However, it is widely accepted that a large number of species are not sporulating in nature while others cannot be cultured. Recent ecological studies based on culture-independent methods revealed these unculturable taxa, i.e., dark taxa. Recent fungal diversity estimation studies suggested that environmental sequencing plays a vital role in discovering missing species. However, Sanger sequencing is still the main approach in determining DNA sequences in culturable species. In this paper, we summarize culture-based and culture-independent methods in the study of ascomycetous taxa. High-throughput sequencing of leaf endophytes, leaf litter fungi and fungi in aquatic environments is important to determine dark taxa. Nevertheless, currently, naming dark taxa is not recognized by the ICN, thus provisional naming of them is essential as suggested by several studies.https://www.mdpi.com/2309-608X/7/9/703consolidated species conceptfungal diversitymolecular taxonomymorphological characterstraditional taxonomypolyphasic approach
spellingShingle Nalin N. Wijayawardene
Mohammad Bahram
Iván Sánchez-Castro
Dong-Qin Dai
Kahandawa G. S. U. Ariyawansa
Udeni Jayalal
Nakarin Suwannarach
Leho Tedersoo
Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous Taxa
Journal of Fungi
consolidated species concept
fungal diversity
molecular taxonomy
morphological characters
traditional taxonomy
polyphasic approach
title Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous Taxa
title_full Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous Taxa
title_fullStr Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous Taxa
title_full_unstemmed Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous Taxa
title_short Current Insight into Culture-Dependent and Culture-Independent Methods in Discovering Ascomycetous Taxa
title_sort current insight into culture dependent and culture independent methods in discovering ascomycetous taxa
topic consolidated species concept
fungal diversity
molecular taxonomy
morphological characters
traditional taxonomy
polyphasic approach
url https://www.mdpi.com/2309-608X/7/9/703
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