@ARTICLE{TreeBASE2Ref19389,
author = {Steve Leavitt and L. A. Johnson and Larry L. St. Clair},
title = {Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America},
year = {2010},
keywords = {morphology, secondary metabolites; species delimitation, vagrant lichens; Xanthoparmelia},
doi = {},
url = {http://},
pmid = {},
journal = {American Journal of Botany},
volume = {},
number = {},
pages = {},
abstract = {Premise of the study
Accurate species delimitation is important for understanding factors driving diversification of biota
and has critical implications for ecological and conservation studies. However, a growing body of
evidence indicates that morphology-based species circumspection in lichenized fungi misrepresents
fungal diversity. The foliose lichen genus Xanthoparmelia (Vainio) Hale. includes over 800 species
displaying a complex array of morphological and secondary metabolite diversity.
Methods
In this study we used a multifaceted approach, applying phylogenetic, population genetic, and
genealogical analyses to delimit species in a single well-supported monophyletic clade containing ten
morphologically and chemically diverse Xanthoparmelia species in western North America. Sequence
data from 4 ribosomal and 2 nuclear loci, along with chemical and morphological were used to assess
species diversity.
Key results
We find that traditionally circumscribed species are not supported by molecular data. Rather, all
sampled taxa were better represented by three polymorphic population clusters supported, in part, by
multiple analytical approaches. Our results suggest that secondary metabolite variation may have
limited utility in diagnosing lineages within this group, while identified populations clusters did not
reflect major phylogeographic or ecological patterns.
Conclusions
In contrast to studies revealing previously undiscovered fungal lineages masked within lichen species
circumscribed by traditional morphological and chemical concepts, the present study suggests that
species diversity has been overestimated in the species rich genus Xanthoparmelia. A concordance
approach using multiple lines of evidence and analytical tools provides an effective approach to delimit lichenized fungi species in notoriously challenging groups.}
}
Citation for Study 11090
Citation title:
"Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America".
Study name:
"Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America".
This study is part of submission 11080
(Status: Published).
Citation
Leavitt S., Johnson L., & St. clair L.L. 2010. Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America. American Journal of Botany, .
Authors
-
Leavitt S.
(submitter)
-
Johnson L.
-
St. clair L.L.
Abstract
Premise of the study
Accurate species delimitation is important for understanding factors driving diversification of biota
and has critical implications for ecological and conservation studies. However, a growing body of
evidence indicates that morphology-based species circumspection in lichenized fungi misrepresents
fungal diversity. The foliose lichen genus Xanthoparmelia (Vainio) Hale. includes over 800 species
displaying a complex array of morphological and secondary metabolite diversity.
Methods
In this study we used a multifaceted approach, applying phylogenetic, population genetic, and
genealogical analyses to delimit species in a single well-supported monophyletic clade containing ten
morphologically and chemically diverse Xanthoparmelia species in western North America. Sequence
data from 4 ribosomal and 2 nuclear loci, along with chemical and morphological were used to assess
species diversity.
Key results
We find that traditionally circumscribed species are not supported by molecular data. Rather, all
sampled taxa were better represented by three polymorphic population clusters supported, in part, by
multiple analytical approaches. Our results suggest that secondary metabolite variation may have
limited utility in diagnosing lineages within this group, while identified populations clusters did not
reflect major phylogeographic or ecological patterns.
Conclusions
In contrast to studies revealing previously undiscovered fungal lineages masked within lichen species
circumscribed by traditional morphological and chemical concepts, the present study suggests that
species diversity has been overestimated in the species rich genus Xanthoparmelia. A concordance
approach using multiple lines of evidence and analytical tools provides an effective approach to delimit lichenized fungi species in notoriously challenging groups.
Keywords
morphology, secondary metabolites; species delimitation, vagrant lichens; Xanthoparmelia
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S11090
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref19389,
author = {Steve Leavitt and L. A. Johnson and Larry L. St. Clair},
title = {Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America},
year = {2010},
keywords = {morphology, secondary metabolites; species delimitation, vagrant lichens; Xanthoparmelia},
doi = {},
url = {http://},
pmid = {},
journal = {American Journal of Botany},
volume = {},
number = {},
pages = {},
abstract = {Premise of the study
Accurate species delimitation is important for understanding factors driving diversification of biota
and has critical implications for ecological and conservation studies. However, a growing body of
evidence indicates that morphology-based species circumspection in lichenized fungi misrepresents
fungal diversity. The foliose lichen genus Xanthoparmelia (Vainio) Hale. includes over 800 species
displaying a complex array of morphological and secondary metabolite diversity.
Methods
In this study we used a multifaceted approach, applying phylogenetic, population genetic, and
genealogical analyses to delimit species in a single well-supported monophyletic clade containing ten
morphologically and chemically diverse Xanthoparmelia species in western North America. Sequence
data from 4 ribosomal and 2 nuclear loci, along with chemical and morphological were used to assess
species diversity.
Key results
We find that traditionally circumscribed species are not supported by molecular data. Rather, all
sampled taxa were better represented by three polymorphic population clusters supported, in part, by
multiple analytical approaches. Our results suggest that secondary metabolite variation may have
limited utility in diagnosing lineages within this group, while identified populations clusters did not
reflect major phylogeographic or ecological patterns.
Conclusions
In contrast to studies revealing previously undiscovered fungal lineages masked within lichen species
circumscribed by traditional morphological and chemical concepts, the present study suggests that
species diversity has been overestimated in the species rich genus Xanthoparmelia. A concordance
approach using multiple lines of evidence and analytical tools provides an effective approach to delimit lichenized fungi species in notoriously challenging groups.}
}
- Show RIS reference
TY - JOUR
ID - 19389
AU - Leavitt,Steve
AU - Johnson,L. A.
AU - St. Clair,Larry L.
T1 - Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America
PY - 2010
KW - morphology
KW - secondary metabolites; species delimitation
KW - vagrant lichens; Xanthoparmelia
UR - http://dx.doi.org/
N2 - Premise of the study
Accurate species delimitation is important for understanding factors driving diversification of biota
and has critical implications for ecological and conservation studies. However, a growing body of
evidence indicates that morphology-based species circumspection in lichenized fungi misrepresents
fungal diversity. The foliose lichen genus Xanthoparmelia (Vainio) Hale. includes over 800 species
displaying a complex array of morphological and secondary metabolite diversity.
Methods
In this study we used a multifaceted approach, applying phylogenetic, population genetic, and
genealogical analyses to delimit species in a single well-supported monophyletic clade containing ten
morphologically and chemically diverse Xanthoparmelia species in western North America. Sequence
data from 4 ribosomal and 2 nuclear loci, along with chemical and morphological were used to assess
species diversity.
Key results
We find that traditionally circumscribed species are not supported by molecular data. Rather, all
sampled taxa were better represented by three polymorphic population clusters supported, in part, by
multiple analytical approaches. Our results suggest that secondary metabolite variation may have
limited utility in diagnosing lineages within this group, while identified populations clusters did not
reflect major phylogeographic or ecological patterns.
Conclusions
In contrast to studies revealing previously undiscovered fungal lineages masked within lichen species
circumscribed by traditional morphological and chemical concepts, the present study suggests that
species diversity has been overestimated in the species rich genus Xanthoparmelia. A concordance
approach using multiple lines of evidence and analytical tools provides an effective approach to delimit lichenized fungi species in notoriously challenging groups.
L3 -
JF - American Journal of Botany
VL -
IS -
ER -