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Molecular phylogeny and spore evolution of Entolomataceae.

Co-David D, Langeveld D, Noordeloos ME - Persoonia (2009)

Bottom Line: Entoloma is best retained as one genus.The ancestral spore type of the Entolomataceae was either rhodocyboid or entolomatoid.Taxonomic and nomenclatural changes are made including merging Rhodocybe into Clitopilus and transferring relevant species into Clitopilus and Entoloma.

View Article: PubMed Central - PubMed

Affiliation: National Herbarium of the Netherlands, Leiden University branch, P.O. Box 9514, 2300 RA Leiden, The Netherlands;

ABSTRACT
The phylogeny of the Entolomataceae was reconstructed using three loci (RPB2, LSU and mtSSU) and, in conjunction with spore morphology (using SEM and TEM), was used to address four main systematic issues: 1) the monophyly of the Entolomataceae; 2) inter-generic relationships within the Entolomataceae; 3) genus delimitation of Entolomataceae; and 4) spore evolution in the Entolomataceae. Results confirm that the Entolomataceae (Entoloma, Rhodocybe, Clitopilus, Richoniella and Rhodogaster) is monophyletic and that the combination of pinkish spore prints and spores having bumps and/or ridges formed by an epicorium is a synapomorphy for the family. The Entolomataceae is made up of two sister clades: one with Clitopilus nested within Rhodocybe and another with Richoniella and Rhodogaster nested within Entoloma. Entoloma is best retained as one genus. The smaller genera within Entoloma s.l. are either polyphyletic or make other genera paraphyletic. Spores of the clitopiloid type are derived from rhodocyboid spores. The ancestral spore type of the Entolomataceae was either rhodocyboid or entolomatoid. Taxonomic and nomenclatural changes are made including merging Rhodocybe into Clitopilus and transferring relevant species into Clitopilus and Entoloma.

No MeSH data available.


Phylogram of Bayesian analysis of RPB2. Bayesian p.p. indicated above the branch. Subgenera of Entoloma species (according to Noordeloos 2004, Manimohan et al. 2006, Gates & Noordeloos 2007) is indicated as follows: ALB Alboleptonia, ALL Allocybe, CLA Claudopus, CLI Clitopiloides, ENT Entoloma, INO Inocephalus, LEP Leptonia, NOL Nolanea, PAR Paraleptonia, POU Pouzarella, TRI Trichopilus.
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Figure 3: Phylogram of Bayesian analysis of RPB2. Bayesian p.p. indicated above the branch. Subgenera of Entoloma species (according to Noordeloos 2004, Manimohan et al. 2006, Gates & Noordeloos 2007) is indicated as follows: ALB Alboleptonia, ALL Allocybe, CLA Claudopus, CLI Clitopiloides, ENT Entoloma, INO Inocephalus, LEP Leptonia, NOL Nolanea, PAR Paraleptonia, POU Pouzarella, TRI Trichopilus.

Mentions: Of the three DNA loci sequenced, RPB2 yielded the best-resolved and best-supported phylogenetic reconstruction and LSU the least resolved and supported. The results of the 3-loci analyses are summarized in Fig. 2, while Fig. 3, 4, 5 show the Bayesian analyses of the single-gene datasets. The alignments of taxa with particularly long branch lengths (R. hirneola, C. prunulus) were examined. Both species were not misaligned and each had a large number of autapomorphies.


Molecular phylogeny and spore evolution of Entolomataceae.

Co-David D, Langeveld D, Noordeloos ME - Persoonia (2009)

Phylogram of Bayesian analysis of RPB2. Bayesian p.p. indicated above the branch. Subgenera of Entoloma species (according to Noordeloos 2004, Manimohan et al. 2006, Gates & Noordeloos 2007) is indicated as follows: ALB Alboleptonia, ALL Allocybe, CLA Claudopus, CLI Clitopiloides, ENT Entoloma, INO Inocephalus, LEP Leptonia, NOL Nolanea, PAR Paraleptonia, POU Pouzarella, TRI Trichopilus.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2802732&req=5

Figure 3: Phylogram of Bayesian analysis of RPB2. Bayesian p.p. indicated above the branch. Subgenera of Entoloma species (according to Noordeloos 2004, Manimohan et al. 2006, Gates & Noordeloos 2007) is indicated as follows: ALB Alboleptonia, ALL Allocybe, CLA Claudopus, CLI Clitopiloides, ENT Entoloma, INO Inocephalus, LEP Leptonia, NOL Nolanea, PAR Paraleptonia, POU Pouzarella, TRI Trichopilus.
Mentions: Of the three DNA loci sequenced, RPB2 yielded the best-resolved and best-supported phylogenetic reconstruction and LSU the least resolved and supported. The results of the 3-loci analyses are summarized in Fig. 2, while Fig. 3, 4, 5 show the Bayesian analyses of the single-gene datasets. The alignments of taxa with particularly long branch lengths (R. hirneola, C. prunulus) were examined. Both species were not misaligned and each had a large number of autapomorphies.

Bottom Line: Entoloma is best retained as one genus.The ancestral spore type of the Entolomataceae was either rhodocyboid or entolomatoid.Taxonomic and nomenclatural changes are made including merging Rhodocybe into Clitopilus and transferring relevant species into Clitopilus and Entoloma.

View Article: PubMed Central - PubMed

Affiliation: National Herbarium of the Netherlands, Leiden University branch, P.O. Box 9514, 2300 RA Leiden, The Netherlands;

ABSTRACT
The phylogeny of the Entolomataceae was reconstructed using three loci (RPB2, LSU and mtSSU) and, in conjunction with spore morphology (using SEM and TEM), was used to address four main systematic issues: 1) the monophyly of the Entolomataceae; 2) inter-generic relationships within the Entolomataceae; 3) genus delimitation of Entolomataceae; and 4) spore evolution in the Entolomataceae. Results confirm that the Entolomataceae (Entoloma, Rhodocybe, Clitopilus, Richoniella and Rhodogaster) is monophyletic and that the combination of pinkish spore prints and spores having bumps and/or ridges formed by an epicorium is a synapomorphy for the family. The Entolomataceae is made up of two sister clades: one with Clitopilus nested within Rhodocybe and another with Richoniella and Rhodogaster nested within Entoloma. Entoloma is best retained as one genus. The smaller genera within Entoloma s.l. are either polyphyletic or make other genera paraphyletic. Spores of the clitopiloid type are derived from rhodocyboid spores. The ancestral spore type of the Entolomataceae was either rhodocyboid or entolomatoid. Taxonomic and nomenclatural changes are made including merging Rhodocybe into Clitopilus and transferring relevant species into Clitopilus and Entoloma.

No MeSH data available.