A Molecular and Morphological Reassessment of Diademaceae

We revisit the family Diademaceae based on available sequence data and morphology. Diademaceae is characterized by ascomata opening with a flat circular lid and fissitunicate, short orbicular frequently cylindrical, pedicellate asci. Ascospores are frequently circular in section but narrowing to one...

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Main Authors: Hiran A. Ariyawansa, Rungtiwa Phookamsak, Saowaluck Tibpromma, Ji-Chuan Kang, Kevin D. Hyde
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/675348
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author Hiran A. Ariyawansa
Rungtiwa Phookamsak
Saowaluck Tibpromma
Ji-Chuan Kang
Kevin D. Hyde
author_facet Hiran A. Ariyawansa
Rungtiwa Phookamsak
Saowaluck Tibpromma
Ji-Chuan Kang
Kevin D. Hyde
author_sort Hiran A. Ariyawansa
collection DOAJ
description We revisit the family Diademaceae based on available sequence data and morphology. Diademaceae is characterized by ascomata opening with a flat circular lid and fissitunicate, short orbicular frequently cylindrical, pedicellate asci. Ascospores are frequently circular in section but narrowing to one end with three or more transverse septa, without longitudinal septa, and mostly with a thick sheath. In recent treatments Clathrospora, Comoclathris, Diadema, Diademosa, and Graphyllium were placed in the family. Following molecular and morphological study, Clathrospora, Comoclathris, and Diademosa, are excluded from the family and referred to Pleosporaceae. Graphyllium is excluded from Diademaceae, based on hysterothecium-like ascomata with a longitudinal opening, and tentatively placed in Hysteriaceae with uncertainty; species with hysterothecia have now been accommodated in at least five families. The study accepts only Diadema in the family. The status of Diademaceae as a distinct family, based on the ascomata opening by a flat circular lid, is thought to be doubtful. Fresh collections of Diadema are needed for epitypification and to obtain sequence data to establish if this is a well-resolved family.
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institution Kabale University
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language English
publishDate 2014-01-01
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series The Scientific World Journal
spelling doaj-art-60b9880ab4bd4d3c997415418258637f2025-02-03T01:30:19ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/675348675348A Molecular and Morphological Reassessment of DiademaceaeHiran A. Ariyawansa0Rungtiwa Phookamsak1Saowaluck Tibpromma2Ji-Chuan Kang3Kevin D. Hyde4The Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China, Guizhou University, Guiyang, Guizhou 550025, China School of Science, Mae Fah Luang University, Chiang Rai 57100, ThailandSchool of Science, Mae Fah Luang University, Chiang Rai 57100, ThailandThe Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China, Guizhou University, Guiyang, Guizhou 550025, China School of Science, Mae Fah Luang University, Chiang Rai 57100, ThailandWe revisit the family Diademaceae based on available sequence data and morphology. Diademaceae is characterized by ascomata opening with a flat circular lid and fissitunicate, short orbicular frequently cylindrical, pedicellate asci. Ascospores are frequently circular in section but narrowing to one end with three or more transverse septa, without longitudinal septa, and mostly with a thick sheath. In recent treatments Clathrospora, Comoclathris, Diadema, Diademosa, and Graphyllium were placed in the family. Following molecular and morphological study, Clathrospora, Comoclathris, and Diademosa, are excluded from the family and referred to Pleosporaceae. Graphyllium is excluded from Diademaceae, based on hysterothecium-like ascomata with a longitudinal opening, and tentatively placed in Hysteriaceae with uncertainty; species with hysterothecia have now been accommodated in at least five families. The study accepts only Diadema in the family. The status of Diademaceae as a distinct family, based on the ascomata opening by a flat circular lid, is thought to be doubtful. Fresh collections of Diadema are needed for epitypification and to obtain sequence data to establish if this is a well-resolved family.http://dx.doi.org/10.1155/2014/675348
spellingShingle Hiran A. Ariyawansa
Rungtiwa Phookamsak
Saowaluck Tibpromma
Ji-Chuan Kang
Kevin D. Hyde
A Molecular and Morphological Reassessment of Diademaceae
The Scientific World Journal
title A Molecular and Morphological Reassessment of Diademaceae
title_full A Molecular and Morphological Reassessment of Diademaceae
title_fullStr A Molecular and Morphological Reassessment of Diademaceae
title_full_unstemmed A Molecular and Morphological Reassessment of Diademaceae
title_short A Molecular and Morphological Reassessment of Diademaceae
title_sort molecular and morphological reassessment of diademaceae
url http://dx.doi.org/10.1155/2014/675348
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