@ARTICLE{TreeBASE2Ref14578,
author = {Jennifer L. Anderson and Weidong Chen and Carol A. Shearer},
title = {Phylogeny of Halosarpheia based on 18S rDNA},
year = {2001},
keywords = {appendages; aquatic; Ascomycetes; Halosphaeriales; rDNA; systematics},
doi = {},
url = {http://www.jstor.org/stable/3761755},
pmid = {},
journal = {Mycologia},
volume = {93},
number = {5},
pages = {897--906},
abstract = {Species of Halosarpheia, a genus of aquatic Ascomycetes, are morphologically unified by the presence of unfurling ascospore appendages. This character state may be unreliable for resolving evolutionary relationships, however, due to its likely adaptive nature. Taxonomic emphasis on unfurling ascospore appendages has led to the inclusion of species within Halosarpheia that are morphologically similar enough to confound identification, as well as those distinct enough to question their placement in the genus. Phylogenetic analyses of 18S rDNA sequences demonstrate polyphyly of the genus, with H. fibrosa, the type of the genus, resolved separately from all other species of Halosarpheia analyzed. Morphologically similar species H. retorquens, H. viscosa, H. heteroguttulata, and H. lotica are distinct species separable by RFLP analysis of the ITS1 region as well as 18S rDNA sequence analyses. Some morphological characters used to delineate species within Halosarpheia, such as ascospore guttulation pattern and number of ascospore appendages, may actually reflect generic differences that have been overshadowed by convergent evolution in appendage type.}
}
Citation for Study 776
Citation title:
"Phylogeny of Halosarpheia based on 18S rDNA".
This study was previously identified under the legacy study ID S631
(Status: Published).
Citation
Anderson J., Chen W., & Shearer C. 2001. Phylogeny of Halosarpheia based on 18S rDNA. Mycologia, 93(5): 897-906.
Authors
-
Anderson J.
-
Chen W.
-
Shearer C.
Abstract
Species of Halosarpheia, a genus of aquatic Ascomycetes, are morphologically unified by the presence of unfurling ascospore appendages. This character state may be unreliable for resolving evolutionary relationships, however, due to its likely adaptive nature. Taxonomic emphasis on unfurling ascospore appendages has led to the inclusion of species within Halosarpheia that are morphologically similar enough to confound identification, as well as those distinct enough to question their placement in the genus. Phylogenetic analyses of 18S rDNA sequences demonstrate polyphyly of the genus, with H. fibrosa, the type of the genus, resolved separately from all other species of Halosarpheia analyzed. Morphologically similar species H. retorquens, H. viscosa, H. heteroguttulata, and H. lotica are distinct species separable by RFLP analysis of the ITS1 region as well as 18S rDNA sequence analyses. Some morphological characters used to delineate species within Halosarpheia, such as ascospore guttulation pattern and number of ascospore appendages, may actually reflect generic differences that have been overshadowed by convergent evolution in appendage type.
Keywords
appendages; aquatic; Ascomycetes; Halosphaeriales; rDNA; systematics
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S776
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref14578,
author = {Jennifer L. Anderson and Weidong Chen and Carol A. Shearer},
title = {Phylogeny of Halosarpheia based on 18S rDNA},
year = {2001},
keywords = {appendages; aquatic; Ascomycetes; Halosphaeriales; rDNA; systematics},
doi = {},
url = {http://www.jstor.org/stable/3761755},
pmid = {},
journal = {Mycologia},
volume = {93},
number = {5},
pages = {897--906},
abstract = {Species of Halosarpheia, a genus of aquatic Ascomycetes, are morphologically unified by the presence of unfurling ascospore appendages. This character state may be unreliable for resolving evolutionary relationships, however, due to its likely adaptive nature. Taxonomic emphasis on unfurling ascospore appendages has led to the inclusion of species within Halosarpheia that are morphologically similar enough to confound identification, as well as those distinct enough to question their placement in the genus. Phylogenetic analyses of 18S rDNA sequences demonstrate polyphyly of the genus, with H. fibrosa, the type of the genus, resolved separately from all other species of Halosarpheia analyzed. Morphologically similar species H. retorquens, H. viscosa, H. heteroguttulata, and H. lotica are distinct species separable by RFLP analysis of the ITS1 region as well as 18S rDNA sequence analyses. Some morphological characters used to delineate species within Halosarpheia, such as ascospore guttulation pattern and number of ascospore appendages, may actually reflect generic differences that have been overshadowed by convergent evolution in appendage type.}
}
- Show RIS reference
TY - JOUR
ID - 14578
AU - Anderson,Jennifer L.
AU - Chen,Weidong
AU - Shearer,Carol A.
T1 - Phylogeny of Halosarpheia based on 18S rDNA
PY - 2001
KW - appendages; aquatic; Ascomycetes; Halosphaeriales; rDNA; systematics
UR - http://www.jstor.org/stable/3761755
N2 - Species of Halosarpheia, a genus of aquatic Ascomycetes, are morphologically unified by the presence of unfurling ascospore appendages. This character state may be unreliable for resolving evolutionary relationships, however, due to its likely adaptive nature. Taxonomic emphasis on unfurling ascospore appendages has led to the inclusion of species within Halosarpheia that are morphologically similar enough to confound identification, as well as those distinct enough to question their placement in the genus. Phylogenetic analyses of 18S rDNA sequences demonstrate polyphyly of the genus, with H. fibrosa, the type of the genus, resolved separately from all other species of Halosarpheia analyzed. Morphologically similar species H. retorquens, H. viscosa, H. heteroguttulata, and H. lotica are distinct species separable by RFLP analysis of the ITS1 region as well as 18S rDNA sequence analyses. Some morphological characters used to delineate species within Halosarpheia, such as ascospore guttulation pattern and number of ascospore appendages, may actually reflect generic differences that have been overshadowed by convergent evolution in appendage type.
L3 -
JF - Mycologia
VL - 93
IS - 5
SP - 897
EP - 906
ER -