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Entoloma subgenus Leptonia in boreal-temperate Eurasia: towards a phylogenetic species concept.

Morozova OV, Noordeloos ME, Vila J - Persoonia (2014)

Bottom Line: Leptonia as well as the new sect.On the basis of the morphological and phylogenetical evidence E. alnetorum is reduced to a variety of E. tjallingiorum, and E. venustum is considered a variety of E. callichroum.Neotypes for E. dichroum, E. euchroum and E. lampropus are designated.

View Article: PubMed Central - PubMed

Affiliation: Komarov Botanical Institute, 197376, 2 Prof. Popov Str., St Petersburg, Russia;

ABSTRACT
This study reveals the concordance, or lack thereof, between morphological and phylogenetic species concepts within Entoloma subg. Leptonia in boreal-temperate Eurasia, combining a critical morphological examination with a multigene phylogeny based on nrITS, nrLSU and mtSSU sequences. A total of 16 taxa was investigated. Emended concepts of subg. Leptonia and sect. Leptonia as well as the new sect. Dichroi are presented. Two species (Entoloma percoelestinum and E. sublaevisporum) and one variety (E. tjallingiorum var. laricinum) are described as new to science. On the basis of the morphological and phylogenetical evidence E. alnetorum is reduced to a variety of E. tjallingiorum, and E. venustum is considered a variety of E. callichroum. Accordingly, the new combinations E. tjallingiorum var. alnetorum and E. callichroum var. venustum are proposed. Entoloma lepidissimum var. pauciangulatum is now treated as a synonym of E. chytrophilum. Neotypes for E. dichroum, E. euchroum and E. lampropus are designated.

No MeSH data available.


Phylogenetic tree derived from Bayesian analysis, based on nrITS1-5.8S-ITS2 data. 1. Branches of subg. Leptonia subtree collapsed. Posterior probability (PP) values from the Bayesian analysis followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS). PP values ≥ 0.95 and BS values > 50 % are shown.
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Figure 1: Phylogenetic tree derived from Bayesian analysis, based on nrITS1-5.8S-ITS2 data. 1. Branches of subg. Leptonia subtree collapsed. Posterior probability (PP) values from the Bayesian analysis followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS). PP values ≥ 0.95 and BS values > 50 % are shown.

Mentions: First of all, the analyses show a well-supported Leptonia clade (1.0/100 – BA/MP – hereinafter), separated from both the Nolanea-Claudopus and the Inocephalus-Cyanula clades (Fig. 1). As was shown by Co-David et al. (2009) and confirmed by the present work, subg. Leptonia in the traditional sense (Noordeloos 1992, 2004) is not monophyletic and must be considered without sections Cyanula and Griseorubida. Section Cyanula recently has been raised to the subgenus level (Noordeloos & Gates 2012). Representatives of sect. Griseorubida (E. indutoides) are nested within the Inocephalus subclade, and the exact taxonomic position of the section must be clarified. Therefore, the available data allowed treating subg. Leptonia in the strict sense, corresponding to sect. Leptonia in the sense of Noordeloos (1992, 2004) and Largent (1994).


Entoloma subgenus Leptonia in boreal-temperate Eurasia: towards a phylogenetic species concept.

Morozova OV, Noordeloos ME, Vila J - Persoonia (2014)

Phylogenetic tree derived from Bayesian analysis, based on nrITS1-5.8S-ITS2 data. 1. Branches of subg. Leptonia subtree collapsed. Posterior probability (PP) values from the Bayesian analysis followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS). PP values ≥ 0.95 and BS values > 50 % are shown.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4150075&req=5

Figure 1: Phylogenetic tree derived from Bayesian analysis, based on nrITS1-5.8S-ITS2 data. 1. Branches of subg. Leptonia subtree collapsed. Posterior probability (PP) values from the Bayesian analysis followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS). PP values ≥ 0.95 and BS values > 50 % are shown.
Mentions: First of all, the analyses show a well-supported Leptonia clade (1.0/100 – BA/MP – hereinafter), separated from both the Nolanea-Claudopus and the Inocephalus-Cyanula clades (Fig. 1). As was shown by Co-David et al. (2009) and confirmed by the present work, subg. Leptonia in the traditional sense (Noordeloos 1992, 2004) is not monophyletic and must be considered without sections Cyanula and Griseorubida. Section Cyanula recently has been raised to the subgenus level (Noordeloos & Gates 2012). Representatives of sect. Griseorubida (E. indutoides) are nested within the Inocephalus subclade, and the exact taxonomic position of the section must be clarified. Therefore, the available data allowed treating subg. Leptonia in the strict sense, corresponding to sect. Leptonia in the sense of Noordeloos (1992, 2004) and Largent (1994).

Bottom Line: Leptonia as well as the new sect.On the basis of the morphological and phylogenetical evidence E. alnetorum is reduced to a variety of E. tjallingiorum, and E. venustum is considered a variety of E. callichroum.Neotypes for E. dichroum, E. euchroum and E. lampropus are designated.

View Article: PubMed Central - PubMed

Affiliation: Komarov Botanical Institute, 197376, 2 Prof. Popov Str., St Petersburg, Russia;

ABSTRACT
This study reveals the concordance, or lack thereof, between morphological and phylogenetic species concepts within Entoloma subg. Leptonia in boreal-temperate Eurasia, combining a critical morphological examination with a multigene phylogeny based on nrITS, nrLSU and mtSSU sequences. A total of 16 taxa was investigated. Emended concepts of subg. Leptonia and sect. Leptonia as well as the new sect. Dichroi are presented. Two species (Entoloma percoelestinum and E. sublaevisporum) and one variety (E. tjallingiorum var. laricinum) are described as new to science. On the basis of the morphological and phylogenetical evidence E. alnetorum is reduced to a variety of E. tjallingiorum, and E. venustum is considered a variety of E. callichroum. Accordingly, the new combinations E. tjallingiorum var. alnetorum and E. callichroum var. venustum are proposed. Entoloma lepidissimum var. pauciangulatum is now treated as a synonym of E. chytrophilum. Neotypes for E. dichroum, E. euchroum and E. lampropus are designated.

No MeSH data available.