Endophytic Xylaria (Xylariaceae) among liverworts and angiosperms: phylogenetics, distribution, and symbiosis

Nuclear ribosomal 18S and internal transcribed spacer (ITS) sequence data were used to identify endophytic fungi cultured from six species of liverworts collected in Jamaica and North Carolina. Comparisons with other published fungal sequences and phylogenetic analyses yielded the following conclusi...

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Bibliographic Details
Published in:American journal of botany 2003-11, Vol.90 (11), p.1661-1667
Main Authors: Davis, E. Christine, Franklin, Joseph B, Shaw, A. Jonathan, Vilgalys, Rytas
Format: Article
Language:English
Subjects:
Angiosperms
Ascomycota
Botany
endophytes
Endosymbionts
Flowers & plants
Fungi
Genetics
Hepaticopsida
Internal transcribed spacers
Jamaica
Liverworts
North Carolina, USA
Parsimony
Phylogenetics
Phylogeny
Plants
Symbiosis
Systematics and Phytogeography
Xylaria
Xylariaceae
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Description
Summary:Nuclear ribosomal 18S and internal transcribed spacer (ITS) sequence data were used to identify endophytic fungi cultured from six species of liverworts collected in Jamaica and North Carolina. Comparisons with other published fungal sequences and phylogenetic analyses yielded the following conclusions: (1) the endophytes belong to the ascomycete families Xylariaceae, Hypocreaceae, and Ophiostomataceae, and (2) liverwort endophytes in the genus Xylaria are closely related to each other and to endophytes isolated from angiosperms in China, Puerto Rico, and Europe. Liverwort endophytes are expected to be foragers or endophytic specialists, although little is known about the role of these fungi in symbioses. Features that may indicate a mutualistic role for these endophytes are discussed.
ISSN:0002-9122
1537-2197
DOI:10.3732/ajb.90.11.1661