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Taxonomy and multi-gene phylogeny of Datronia(Polyporales, Basidiomycota).

Li HJ, Cui BK, Dai YC - Persoonia (2014)

Bottom Line: Four new species of Datroniella, D. melanocarpa, D. subtropica, D. tibetica and D. tropica, were identified.Illustrated descriptions of the new species and two new genera are provided.The main morphological differences between Datronia, Datroniella, Neodatronia and related genera are discussed, identification keys to related genera and species in each genus are provided.

View Article: PubMed Central - PubMed

Affiliation: Institute of Microbiology, Beijing Forestry University, Beijing 100083, China;

ABSTRACT
Taxonomic and phylogenetic studies on Datronia were carried out. Phylogeny based on ITS, nLSU and RBP2 regions revealed that Datronia in current sense includes species belonging to three distantly related clades in polypores. The Datronia in a restricted sense is proposed for the clade including the type species D. mollis and D. stereoides. Neodatronia gen. nov. was proposed for two new resupinate species, N. gaoligongensis and N. sinensis. Species of Neodatronia differ from Datronia s.s. by their resupinate basidiomes, moderately to frequently branched skeletal hyphae in subiculum. Datroniella gen. nov., typified by D. scutellata was proposed for species in the other clade. Four new species of Datroniella, D. melanocarpa, D. subtropica, D. tibetica and D. tropica, were identified. Species of Datroniella differ from Datronia s.s. by their moderately to frequently branched skeletal hyphae in context and absence of dendrohyphidia. While, differentiate from Neodatronia by their small pileate, effused-reflexed or rarely resupinate basidiomes and absence of dendrohyphidia. Illustrated descriptions of the new species and two new genera are provided. The main morphological differences between Datronia, Datroniella, Neodatronia and related genera are discussed, identification keys to related genera and species in each genus are provided.

No MeSH data available.


Related in: MedlinePlus

One of the MP tree inferred from combined dataset of ITS, nLSU and RPB2. Parsimony bootstrap proportions (before the slash markers) higher than 50 % and Bayesian posterior probabilities (after the slash markers) more than 0.95 are indicated along branches.
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Figure 1: One of the MP tree inferred from combined dataset of ITS, nLSU and RPB2. Parsimony bootstrap proportions (before the slash markers) higher than 50 % and Bayesian posterior probabilities (after the slash markers) more than 0.95 are indicated along branches.

Mentions: A total of 44 ITS, 45 nLSU and 40 RPB2 sequences were included in the combined dataset (Table 1), of which 21 ITS and nLSU, and 19 RPB2 were newly generated in this study. The resulted alignment had 3 097 base pairs with 908 parsimony-informative characters. Twelve equally parsimonious trees were yielded (tree length = 4.061, CI = 0.450, RI = 0.695, RC = 0.313) and one of them was shown in Fig. 1. In the parsimony analysis, the current Datronia includes species belonging to three distinct clades, namely one clade of D. mollis and D. stereoides, the clade clustered by two Chinese resupinate species and the clade of D. scutellata and related species (Fig. 1). We propose to restrict Datronia to D. mollis and D. stereoides. The clade including two Chinese resupinate species was proposed as a new genus, Neodatronia gen. nov., and two new species, N. gaoligongensis and N. sinensis were identified (Fig. 1). Datronia scutellata and related species was proposed as member of another new genus, Datroniella gen. nov., typified by D. scutellata. Four new species, D. melanocarpa, D. subtropica, D. tibetica and D. tropica, were identified from China (Fig. 1). In the Bayesian analysis, no conflicts between topologies from the MP tree were discovered, the separation of Datroniella and Neodatronia from Datronia was also supported. Three clades identified as Datronia s.s., Datroniella and Neodatronia were strongly supported (BPP = 1.00, Fig. 1), and sequences of the six new species appear as distinct lineages with high support. Best model estimated and applied in the BI was ‘GTR+I+G’ with equal frequency of nucleotides.


Taxonomy and multi-gene phylogeny of Datronia(Polyporales, Basidiomycota).

Li HJ, Cui BK, Dai YC - Persoonia (2014)

One of the MP tree inferred from combined dataset of ITS, nLSU and RPB2. Parsimony bootstrap proportions (before the slash markers) higher than 50 % and Bayesian posterior probabilities (after the slash markers) more than 0.95 are indicated along branches.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4150076&req=5

Figure 1: One of the MP tree inferred from combined dataset of ITS, nLSU and RPB2. Parsimony bootstrap proportions (before the slash markers) higher than 50 % and Bayesian posterior probabilities (after the slash markers) more than 0.95 are indicated along branches.
Mentions: A total of 44 ITS, 45 nLSU and 40 RPB2 sequences were included in the combined dataset (Table 1), of which 21 ITS and nLSU, and 19 RPB2 were newly generated in this study. The resulted alignment had 3 097 base pairs with 908 parsimony-informative characters. Twelve equally parsimonious trees were yielded (tree length = 4.061, CI = 0.450, RI = 0.695, RC = 0.313) and one of them was shown in Fig. 1. In the parsimony analysis, the current Datronia includes species belonging to three distinct clades, namely one clade of D. mollis and D. stereoides, the clade clustered by two Chinese resupinate species and the clade of D. scutellata and related species (Fig. 1). We propose to restrict Datronia to D. mollis and D. stereoides. The clade including two Chinese resupinate species was proposed as a new genus, Neodatronia gen. nov., and two new species, N. gaoligongensis and N. sinensis were identified (Fig. 1). Datronia scutellata and related species was proposed as member of another new genus, Datroniella gen. nov., typified by D. scutellata. Four new species, D. melanocarpa, D. subtropica, D. tibetica and D. tropica, were identified from China (Fig. 1). In the Bayesian analysis, no conflicts between topologies from the MP tree were discovered, the separation of Datroniella and Neodatronia from Datronia was also supported. Three clades identified as Datronia s.s., Datroniella and Neodatronia were strongly supported (BPP = 1.00, Fig. 1), and sequences of the six new species appear as distinct lineages with high support. Best model estimated and applied in the BI was ‘GTR+I+G’ with equal frequency of nucleotides.

Bottom Line: Four new species of Datroniella, D. melanocarpa, D. subtropica, D. tibetica and D. tropica, were identified.Illustrated descriptions of the new species and two new genera are provided.The main morphological differences between Datronia, Datroniella, Neodatronia and related genera are discussed, identification keys to related genera and species in each genus are provided.

View Article: PubMed Central - PubMed

Affiliation: Institute of Microbiology, Beijing Forestry University, Beijing 100083, China;

ABSTRACT
Taxonomic and phylogenetic studies on Datronia were carried out. Phylogeny based on ITS, nLSU and RBP2 regions revealed that Datronia in current sense includes species belonging to three distantly related clades in polypores. The Datronia in a restricted sense is proposed for the clade including the type species D. mollis and D. stereoides. Neodatronia gen. nov. was proposed for two new resupinate species, N. gaoligongensis and N. sinensis. Species of Neodatronia differ from Datronia s.s. by their resupinate basidiomes, moderately to frequently branched skeletal hyphae in subiculum. Datroniella gen. nov., typified by D. scutellata was proposed for species in the other clade. Four new species of Datroniella, D. melanocarpa, D. subtropica, D. tibetica and D. tropica, were identified. Species of Datroniella differ from Datronia s.s. by their moderately to frequently branched skeletal hyphae in context and absence of dendrohyphidia. While, differentiate from Neodatronia by their small pileate, effused-reflexed or rarely resupinate basidiomes and absence of dendrohyphidia. Illustrated descriptions of the new species and two new genera are provided. The main morphological differences between Datronia, Datroniella, Neodatronia and related genera are discussed, identification keys to related genera and species in each genus are provided.

No MeSH data available.


Related in: MedlinePlus