Phylogenetic relationship of China Dendrobium species based on the sequence of the internal transcribed spacer of ribosomal DNA

2009 ◽  
Vol 53 (1) ◽  
pp. 155-158 ◽  
Author(s):  
Z.-Q. Yuan ◽  
J.-Y. Zhang ◽  
T. Liu
Keyword(s):  
Phylogenetic Relationship ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Relationship Of

Evolutionary relationships ofHyphodiscus hymeniophilus(anamorphCatenulifera rhodogena) inferred from β-tubulin and nuclear ribosomal DNA sequences

2006 ◽  
Vol 84 (2) ◽  
pp. 243-253 ◽  
Author(s):  
Wendy A. Untereiner ◽  
Françoise A. Naveau ◽  
Jason Bachewich ◽  
Andrea Angus
Keyword(s):  
Phylogenetic Relationship ◽  
Ribosomal Dna ◽  
Dna Sequences ◽  
Its Sequences ◽  
Nuclear Ribosomal Dna ◽  
Phialocephala Fortinii ◽  
Piptoporus Betulinus ◽  
Close Phylogenetic Relationship ◽  
Relationship Of ◽  
Β Tubulin

During an investigation of lignicolous ascomycetes from Luxembourg, we isolated a Phialophora -like species that produced striking red colonies. To confirm the identity of this fungus as Catenulifera rhodogena , we compared it with isolates of Catenulifera rhodogena and Hyphodiscus hymeniophilus on a variety of media. Portions of the β-tubulin gene and the nuclear ribosomal DNA cistron (internal transcribed spacers (ITS) and large subunit (LSU)) were sequenced to examine the relationship of isolates of Catenulifera rhodogena and Hyphodiscus hymeniophilus from different substrates and to test the hypothesis that Cadophora and Catenulifera are congeneric. The phylogenetic position of Catenulifera within the Ascomycota was investigated based on the analysis of the small-subunit (SSU) rDNA sequences. The isolates examined were indistinguishable micromorphologically and closely related phylogenetically. Three strains of Catenulifera rhodogena from bark or wood and one strain from Piptoporus betulinus formed a strongly supported clade in analyses of β-tubulin and ITS sequences. This clade did not encompass the ex-type isolates of Cistella rubescens and Scopulariopsis rhodogena or a second isolate of Catenulifera rhodogena from Piptoporus betulinus. Analysis of partial LSU sequences confirmed the close phylogenetic relationship of Catenulifera rhodogena and Hyphodiscus hymeniophilus but provided no evidence that the isolates could be grouped by substrate or that Catenulifera is synonymous with Cadophora. The position of Catenulifera within the Helotiales was not resolved based on the comparison of LSU and SSU sequences, but the isolate for which we obtained complete SSU sequence grouped with the root endophyte Phialocephala fortinii. Comparison of ITS sequences confirmed the close phylogenetic relationship of Hyphodiscus to members of the Dermateaceae and Hyaloscyphaceae.

scholarly journals The systematic position of Gradsteinia andicola Ochyra (Donrichardsiaceae, Bryopsida) : evidence from nrDNA internal transcribed spacer sequences

2000 ◽  
Vol 18 (1) ◽  
pp. 75-85
Author(s):  
Michael Stech ◽  
Jan-Peter Frahm
Keyword(s):  
New Zealand ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Systematic Position ◽  
Nuclear Ribosomal Dna ◽  
Maximum Parsimony Tree ◽  
Systematic Relationship ◽  
Parsimony Tree ◽  
Internal Transcribed Spacer Sequences ◽  
Relationship Of

Nuclear ribosomal DNA internal transcribed spacer (ITS) 1/2 sequences of the Colombian endemic Gradsteinia andicola were determined and compared with those of 16 other species of the Hypnales (Amblystegiaceae, Brachytheciaceae, Hypnaceae, Plagiotheciaceae and Rhytidiaceae). In a maximum parsimony tree Gradsteinia andicola belongs to a well supported clade consisting of Amblystegium, Cratoneuron, Cratoneuropsis, Hypnobartlettia and Palustriella, and seems to be closely related to Cratoneuropsis relaxa from New Zealand. Gradsteinia andicola is therefore transferred to Amblystegiaceae, but the genus Gradsteinia is maintained. The systematic relationship of Amblystegiaceae and Donrichardsiaceae is discussed.

Phylogenetic relationship of Parmelia lindmanii (Parmeliaceae) inferred by analysis of its nuITS rDNA sequence

2010 ◽  
Vol 42 (4) ◽  
pp. 423-428 ◽  
Author(s):  
Sionara ELIASARO ◽  
Leonardo M. CRUZ ◽  
Marcello IACOMINI ◽  
Fabio de OLIVEIRA PEDROSA ◽  
Lucimara M. C. CORDEIRO
Keyword(s):  
Phylogenetic Relationship ◽  
Ribosomal Dna ◽  
Bayesian Approach ◽  
Type Species ◽  
Rdna Sequence ◽  
Phylogenetic Study ◽  
Nuclear Its ◽  
Relationship Of ◽  
The Relationship

AbstractUsing the nuclear ITS (nuITS) region of the ribosomal DNA and an MP/Bayesian approach, a phylogenetic study was carried out to evaluate the relationship of Parmelia lindmanii with other members of the parmelioid lichen group. Our results showed that P. lindmanii does not belong to the genus Myelochroa, as previously proposed, but is within the clade containing the type species of Parmelinella.

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