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: Hidayat I., Jeewon R., To-Anun C., Hyde K.D.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-33846556196&partnerID=40&md5=dcf6d52d8b741a2baf0c94abcb1cb9f1
http://cmuir.cmu.ac.th/handle/6653943832/273
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spelling th-cmuir.6653943832-2732014-08-29T07:31:30Z The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales Hidayat I. Jeewon R. To-Anun C. Hyde K.D. 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. 2014-08-29T07:31:30Z 2014-08-29T07:31:30Z 2006 Article 15602745 http://www.scopus.com/inward/record.url?eid=2-s2.0-33846556196&partnerID=40&md5=dcf6d52d8b741a2baf0c94abcb1cb9f1 http://cmuir.cmu.ac.th/handle/6653943832/273 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
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 Article
author Hidayat I.
Jeewon R.
To-Anun C.
Hyde K.D.
spellingShingle Hidayat I.
Jeewon R.
To-Anun C.
Hyde K.D.
The genus Oxydothis: New palmicolous taxa and phylogenetic relationships within the Xylariales
author_facet Hidayat I.
Jeewon R.
To-Anun C.
Hyde K.D.
author_sort Hidayat I.
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 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-33846556196&partnerID=40&md5=dcf6d52d8b741a2baf0c94abcb1cb9f1
http://cmuir.cmu.ac.th/handle/6653943832/273
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