Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription

© 2018 German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature Palm fungi are highly diverse in the tropical regions of Asia. Recent investigations on these palmicolous fungi have led to the collection of astrosphaeriella-like taxa from Calamus, Caryota, and Licuala spec...

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Main Authors: Dhanushka N. Wanasinghe, R. Jeewon, E. B. Gareth Jones, Saranyaphat Boonmee, Saithong Kaewchai, Ishara S. Manawasinghe, Saisamorn Lumyong, Kevin D. Hyde
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Published: 2018
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-485472018-06-18T08:56:22Z Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription Dhanushka N. Wanasinghe R. Jeewon E. B. Gareth Jones Saranyaphat Boonmee Saithong Kaewchai Ishara S. Manawasinghe Saisamorn Lumyong Kevin D. Hyde Agricultural and Biological Sciences © 2018 German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature Palm fungi are highly diverse in the tropical regions of Asia. Recent investigations on these palmicolous fungi have led to the collection of astrosphaeriella-like taxa from Calamus, Caryota, and Licuala species in Thailand (Chiang Rai and Narathiwat provinces) and southwest China (Yunnan Province). This study characterizes fungal taxa, which are new to science, based on morphological examination and concatenated DNA sequence data, to infer their familial relationships. Morphological comparisons reveal six new species, viz. Astrosphaeriellopsis caryotae, Fissuroma calami, F. caryotae, Neoastrosphaeriella sribooniensis, Pithomyces caryotae, and P. licualae. Their similarities and differences to other extant species are discussed. The phylogenetic results indicate that all of these new taxa belong to Aigialaceae and Astrosphaeriellaceae (Pleosporales) and support their establishment. Astrosphaeriellopsis is assigned to Astrosphaeriellaceae and the family is amended in order to accommodate both coelomycetous and hyphomycetous asexual morphs. A generic key is presented for Astrosphaeriellaceae to delimit Astrosphaeriella, Astrosphaeriellopsis, Pteridiospora, and Pithomyces. Asexual morph connections of Pithomyces caryotae and P. licualae are established from axenic cultures derived from single ascospores. DNA-based sequence data supports the establishment of our new species; however, the affinities of Astrosphaeriella tornata to other Astrosphaeriella and Pithomyces species are unclear and warrant further investigations with increased taxon sampling. 2018-04-25T10:13:53Z 2018-04-25T10:13:53Z 2018-02-08 Journal 18618952 1617416X 2-s2.0-85041529105 10.1007/s11557-018-1379-4 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85041529105&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/48547
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Agricultural and Biological Sciences
spellingShingle Agricultural and Biological Sciences
Dhanushka N. Wanasinghe
R. Jeewon
E. B. Gareth Jones
Saranyaphat Boonmee
Saithong Kaewchai
Ishara S. Manawasinghe
Saisamorn Lumyong
Kevin D. Hyde
Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription
description © 2018 German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature Palm fungi are highly diverse in the tropical regions of Asia. Recent investigations on these palmicolous fungi have led to the collection of astrosphaeriella-like taxa from Calamus, Caryota, and Licuala species in Thailand (Chiang Rai and Narathiwat provinces) and southwest China (Yunnan Province). This study characterizes fungal taxa, which are new to science, based on morphological examination and concatenated DNA sequence data, to infer their familial relationships. Morphological comparisons reveal six new species, viz. Astrosphaeriellopsis caryotae, Fissuroma calami, F. caryotae, Neoastrosphaeriella sribooniensis, Pithomyces caryotae, and P. licualae. Their similarities and differences to other extant species are discussed. The phylogenetic results indicate that all of these new taxa belong to Aigialaceae and Astrosphaeriellaceae (Pleosporales) and support their establishment. Astrosphaeriellopsis is assigned to Astrosphaeriellaceae and the family is amended in order to accommodate both coelomycetous and hyphomycetous asexual morphs. A generic key is presented for Astrosphaeriellaceae to delimit Astrosphaeriella, Astrosphaeriellopsis, Pteridiospora, and Pithomyces. Asexual morph connections of Pithomyces caryotae and P. licualae are established from axenic cultures derived from single ascospores. DNA-based sequence data supports the establishment of our new species; however, the affinities of Astrosphaeriella tornata to other Astrosphaeriella and Pithomyces species are unclear and warrant further investigations with increased taxon sampling.
format Journal
author Dhanushka N. Wanasinghe
R. Jeewon
E. B. Gareth Jones
Saranyaphat Boonmee
Saithong Kaewchai
Ishara S. Manawasinghe
Saisamorn Lumyong
Kevin D. Hyde
author_facet Dhanushka N. Wanasinghe
R. Jeewon
E. B. Gareth Jones
Saranyaphat Boonmee
Saithong Kaewchai
Ishara S. Manawasinghe
Saisamorn Lumyong
Kevin D. Hyde
author_sort Dhanushka N. Wanasinghe
title Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription
title_short Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription
title_full Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription
title_fullStr Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription
title_full_unstemmed Novel palmicolous taxa within Pleosporales: multigene phylogeny and taxonomic circumscription
title_sort novel palmicolous taxa within pleosporales: multigene phylogeny and taxonomic circumscription
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85041529105&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/48547
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