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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 Maximum Likelihood, based on combined mtSSU-nrLSU data. Posterior probability (PP) values followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS).
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Figure 4: Phylogenetic tree derived from Maximum Likelihood, based on combined mtSSU-nrLSU data. Posterior probability (PP) values followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS).

Mentions: The topology revealed by the analysis of the combined data is similar to the results of the analysis of the mtSSU data (Fig. 4). The main subgenera of Entoloma form their clades with high support: Rhodopolioid clade (1.0/99), Nolanea (1.0/97), Claudopus (1.0/91), Pouzarella (1.0/57) and Inocephalus-Cyanula clade (1.0/), supported only by the BA. Subg. Leptonia clade received slightly higher support in the MP analysis (1.0/74). Sect. Leptonia (1.0/91) is also well revealed. Etoloma allochroum, E. callichroum, E. coelestinum-percoelestinum clade, E. dichroum, E. lepidissimum occupy isolated uncertain positions within subg. Leptonia. The Cyanula clade (1.0/64) and the Inocephalus-Griseorubidum clade (1.0/) are well indicated within the Inocephalus-Cyanula clade. Etoloma violaceozonatum also nests within this clade, but groups together with E. sericellum. Its taxonomic position needs to be carefully studied in the future.


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

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

Phylogenetic tree derived from Maximum Likelihood, based on combined mtSSU-nrLSU data. Posterior probability (PP) values followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 4: Phylogenetic tree derived from Maximum Likelihood, based on combined mtSSU-nrLSU data. Posterior probability (PP) values followed by bootstrap values from the Maximum Parsimony (BS, %) analysis are added to the left of a node (PP/BS).
Mentions: The topology revealed by the analysis of the combined data is similar to the results of the analysis of the mtSSU data (Fig. 4). The main subgenera of Entoloma form their clades with high support: Rhodopolioid clade (1.0/99), Nolanea (1.0/97), Claudopus (1.0/91), Pouzarella (1.0/57) and Inocephalus-Cyanula clade (1.0/), supported only by the BA. Subg. Leptonia clade received slightly higher support in the MP analysis (1.0/74). Sect. Leptonia (1.0/91) is also well revealed. Etoloma allochroum, E. callichroum, E. coelestinum-percoelestinum clade, E. dichroum, E. lepidissimum occupy isolated uncertain positions within subg. Leptonia. The Cyanula clade (1.0/64) and the Inocephalus-Griseorubidum clade (1.0/) are well indicated within the Inocephalus-Cyanula clade. Etoloma violaceozonatum also nests within this clade, but groups together with E. sericellum. Its taxonomic position needs to be carefully studied in the future.

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.