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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 mtSSU 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 3: Phylogenetic tree derived from Maximum Likelihood, based on mtSSU 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 main clades of the crown part of the Entolomataceae tree indicated by Co-David et al. (2009) were mostly confirmed (Fig. 3). The Rhodopolioid (1.0/100), Nolanea (1.0/78), Claudopus (0.98/69), Pouzarella (0.99/73), Inocephalus-Cyanula (1.0/55) and the Leptonia clades (1.0/57) received the highest support, especially in BA. The holotype of E. violaceozonatum was nested in the Inocephalus-Cyanula clade, therefore this species must be excluded from subg. Leptonia. Inside the Inocephalus-Cyanula clade three subclades can be revealed: the highly supported Cyanula and Alboleptonia-Trichopilus clades and the lowly supported Inocephalus-Griseorubidum clade. So, the position of the E. violaceozonatum within this clade is rather uncertain.


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 mtSSU 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 3: Phylogenetic tree derived from Maximum Likelihood, based on mtSSU 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 main clades of the crown part of the Entolomataceae tree indicated by Co-David et al. (2009) were mostly confirmed (Fig. 3). The Rhodopolioid (1.0/100), Nolanea (1.0/78), Claudopus (0.98/69), Pouzarella (0.99/73), Inocephalus-Cyanula (1.0/55) and the Leptonia clades (1.0/57) received the highest support, especially in BA. The holotype of E. violaceozonatum was nested in the Inocephalus-Cyanula clade, therefore this species must be excluded from subg. Leptonia. Inside the Inocephalus-Cyanula clade three subclades can be revealed: the highly supported Cyanula and Alboleptonia-Trichopilus clades and the lowly supported Inocephalus-Griseorubidum clade. So, the position of the E. violaceozonatum within this clade is rather uncertain.

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.