@ARTICLE{TreeBASE2Ref18687,
author = {Stefan Ekman and Tor T?nsberg},
title = {Most species of Lepraria and Leproloma form a monophyletic group closely related to Stereocaulon},
year = {2002},
keywords = {},
doi = {10.1017/s0953756202006718},
url = {},
pmid = {},
journal = {Mycological Research},
volume = {106},
number = {11},
pages = {1262--1276},
abstract = {The phylogenetic position of members of the entirely asexually reproducing genera Lepraria and Leproloma was investigated using sequence data from the ITS1-5.8S-ITS2 and small subunit (SSU) nuclear ribosomal DNA. Phylogenetic reconstructions were carried out using a likelihood-based Bayesian Markov chain Monte Carlo (MCMC) tree sampling technique and the unweighted least squares optimality criterion, the latter based on maximum likelihood distances obtained via an alignment-free distance estimation technique. The results indicate that most species currently referred to the genera Lepraria and Leproloma form a single monophyletic group. This monophyletic group is the sister group to Stereocaulon and Muhria and belongs in the Stereocaulaceae (Lecanorales, Lecanoromycetes, Ascomycota). This finding indicates that Lepraria has an ancestor that switched from a sexual to an asexual mode of dispersal. Subsequent speciation must have taken place in the absence of sexual processes, which contradicts the view of asexual taxa as 'evolutionary dead ends'. Leproloma is polyphyletic and nested within Lepraria. Lepraria flavescens is a Lecanora, probably belonging in subgenus Glaucomaria. Lepraria lesdainii and L. obtusatica are unrelated to each other and to other species currently referred to Lepraria or Leproloma. Leprocaulon and Crocynia are distantly related to the core group of Lepraria and Leproloma.}
}
Citation for Study 10196
Citation title:
"Most species of Lepraria and Leproloma form a monophyletic group closely related to Stereocaulon".
This study was previously identified under the legacy study ID S785
(Status: Published).
Citation
Ekman S., & T?nsberg T. 2002. Most species of Lepraria and Leproloma form a monophyletic group closely related to Stereocaulon. Mycological Research, 106(11): 1262-1276.
Authors
-
Ekman S.
0046 18 4712821
-
T?nsberg T.
Abstract
The phylogenetic position of members of the entirely asexually reproducing genera Lepraria and Leproloma was investigated using sequence data from the ITS1-5.8S-ITS2 and small subunit (SSU) nuclear ribosomal DNA. Phylogenetic reconstructions were carried out using a likelihood-based Bayesian Markov chain Monte Carlo (MCMC) tree sampling technique and the unweighted least squares optimality criterion, the latter based on maximum likelihood distances obtained via an alignment-free distance estimation technique. The results indicate that most species currently referred to the genera Lepraria and Leproloma form a single monophyletic group. This monophyletic group is the sister group to Stereocaulon and Muhria and belongs in the Stereocaulaceae (Lecanorales, Lecanoromycetes, Ascomycota). This finding indicates that Lepraria has an ancestor that switched from a sexual to an asexual mode of dispersal. Subsequent speciation must have taken place in the absence of sexual processes, which contradicts the view of asexual taxa as 'evolutionary dead ends'. Leproloma is polyphyletic and nested within Lepraria. Lepraria flavescens is a Lecanora, probably belonging in subgenus Glaucomaria. Lepraria lesdainii and L. obtusatica are unrelated to each other and to other species currently referred to Lepraria or Leproloma. Leprocaulon and Crocynia are distantly related to the core group of Lepraria and Leproloma.
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- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S10196
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref18687,
author = {Stefan Ekman and Tor T?nsberg},
title = {Most species of Lepraria and Leproloma form a monophyletic group closely related to Stereocaulon},
year = {2002},
keywords = {},
doi = {10.1017/s0953756202006718},
url = {},
pmid = {},
journal = {Mycological Research},
volume = {106},
number = {11},
pages = {1262--1276},
abstract = {The phylogenetic position of members of the entirely asexually reproducing genera Lepraria and Leproloma was investigated using sequence data from the ITS1-5.8S-ITS2 and small subunit (SSU) nuclear ribosomal DNA. Phylogenetic reconstructions were carried out using a likelihood-based Bayesian Markov chain Monte Carlo (MCMC) tree sampling technique and the unweighted least squares optimality criterion, the latter based on maximum likelihood distances obtained via an alignment-free distance estimation technique. The results indicate that most species currently referred to the genera Lepraria and Leproloma form a single monophyletic group. This monophyletic group is the sister group to Stereocaulon and Muhria and belongs in the Stereocaulaceae (Lecanorales, Lecanoromycetes, Ascomycota). This finding indicates that Lepraria has an ancestor that switched from a sexual to an asexual mode of dispersal. Subsequent speciation must have taken place in the absence of sexual processes, which contradicts the view of asexual taxa as 'evolutionary dead ends'. Leproloma is polyphyletic and nested within Lepraria. Lepraria flavescens is a Lecanora, probably belonging in subgenus Glaucomaria. Lepraria lesdainii and L. obtusatica are unrelated to each other and to other species currently referred to Lepraria or Leproloma. Leprocaulon and Crocynia are distantly related to the core group of Lepraria and Leproloma.}
}
- Show RIS reference
TY - JOUR
ID - 18687
AU - Ekman,Stefan
AU - T?nsberg,Tor
T1 - Most species of Lepraria and Leproloma form a monophyletic group closely related to Stereocaulon
PY - 2002
UR - http://dx.doi.org/10.1017/s0953756202006718
N2 - The phylogenetic position of members of the entirely asexually reproducing genera Lepraria and Leproloma was investigated using sequence data from the ITS1-5.8S-ITS2 and small subunit (SSU) nuclear ribosomal DNA. Phylogenetic reconstructions were carried out using a likelihood-based Bayesian Markov chain Monte Carlo (MCMC) tree sampling technique and the unweighted least squares optimality criterion, the latter based on maximum likelihood distances obtained via an alignment-free distance estimation technique. The results indicate that most species currently referred to the genera Lepraria and Leproloma form a single monophyletic group. This monophyletic group is the sister group to Stereocaulon and Muhria and belongs in the Stereocaulaceae (Lecanorales, Lecanoromycetes, Ascomycota). This finding indicates that Lepraria has an ancestor that switched from a sexual to an asexual mode of dispersal. Subsequent speciation must have taken place in the absence of sexual processes, which contradicts the view of asexual taxa as 'evolutionary dead ends'. Leproloma is polyphyletic and nested within Lepraria. Lepraria flavescens is a Lecanora, probably belonging in subgenus Glaucomaria. Lepraria lesdainii and L. obtusatica are unrelated to each other and to other species currently referred to Lepraria or Leproloma. Leprocaulon and Crocynia are distantly related to the core group of Lepraria and Leproloma.
L3 - 10.1017/s0953756202006718
JF - Mycological Research
VL - 106
IS - 11
SP - 1262
EP - 1276
ER -
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