The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales

Oxydothis (Xylariales) is an ascomycete genus, commonly encountered on decaying monocotyledons, such as palms. During our study on diversity of palmicolous fungi in northern Thailand, we encountered three new species of Oxydothis: O. cyrtostachicola, O. inaequalis and O. wallichianensis, and these a...

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Main Authors: Iman Hidayat, Rajesh Jeewon, Chaiwat To-Anun, Kevin D. Hyde
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/61433
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-614332018-09-11T08:57:12Z The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales Iman Hidayat Rajesh Jeewon Chaiwat To-Anun Kevin D. Hyde Agricultural and Biological Sciences Environmental Science Oxydothis (Xylariales) is an ascomycete genus, commonly encountered on decaying monocotyledons, such as palms. During our study on diversity of palmicolous fungi in northern Thailand, we encountered three new species of Oxydothis: O. cyrtostachicola, O. inaequalis and O. wallichianensis, and these are described and illustrated in this paper. The three novel species differ from other morphologically similar Oxydothis species in ascomata shape and ostiole position, ascal ring, and ascospore morphology. Phylogenetic affiliations of the new taxa with members of related ascomycete families within the Xylariales are discussed based on morphology and nrDNA sequence data. The phylogenetic relationships of Oxydothis and its familial placement remain obscure based on the 28S nrDNA sequence analyses. Large sub unit nrDNA (28S) gene sequences do not provide significant phylogenetic information concerning the evolutionary relationships of these xylariaceous fungi. ITS nrDNA sequence analyses, however, indicate that Oxydothis is more closely related to members of the Amphisphaeriaceae than Diatrypaceae or Xylariaceae. 2018-09-11T08:53:26Z 2018-09-11T08:53:26Z 2006-10-31 Journal 15602745 2-s2.0-33846556196 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33846556196&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61433
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Agricultural and Biological Sciences
Environmental Science
spellingShingle Agricultural and Biological Sciences
Environmental Science
Iman Hidayat
Rajesh Jeewon
Chaiwat To-Anun
Kevin D. Hyde
The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales
description Oxydothis (Xylariales) is an ascomycete genus, commonly encountered on decaying monocotyledons, such as palms. During our study on diversity of palmicolous fungi in northern Thailand, we encountered three new species of Oxydothis: O. cyrtostachicola, O. inaequalis and O. wallichianensis, and these are described and illustrated in this paper. The three novel species differ from other morphologically similar Oxydothis species in ascomata shape and ostiole position, ascal ring, and ascospore morphology. Phylogenetic affiliations of the new taxa with members of related ascomycete families within the Xylariales are discussed based on morphology and nrDNA sequence data. The phylogenetic relationships of Oxydothis and its familial placement remain obscure based on the 28S nrDNA sequence analyses. Large sub unit nrDNA (28S) gene sequences do not provide significant phylogenetic information concerning the evolutionary relationships of these xylariaceous fungi. ITS nrDNA sequence analyses, however, indicate that Oxydothis is more closely related to members of the Amphisphaeriaceae than Diatrypaceae or Xylariaceae.
format Journal
author Iman Hidayat
Rajesh Jeewon
Chaiwat To-Anun
Kevin D. Hyde
author_facet Iman Hidayat
Rajesh Jeewon
Chaiwat To-Anun
Kevin D. Hyde
author_sort Iman Hidayat
title The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales
title_short The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales
title_full The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales
title_fullStr The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales
title_full_unstemmed The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales
title_sort genus oxydothis: new palmicolous taxa and phylogenetic relationships within the xylariales
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33846556196&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61433
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