A molecular phylogeny of Hypnales (Bryophyta) inferred from ITS2 sequence-structure data
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- Background: Hypnales comprise over 50% of all pleurocarpous mosses. They provide a young radiation complicating phylogenetic analyses. To resolve the hypnalean phylogeny, it is necessary to use a phylogenetic marker providing highly variable features to resolve species on the one hand and conserved features enabling a backbone analysis on the other. Therefore we used highly variable internal transcribed spacer 2 (ITS2) sequences and conserved secondary structures, as deposited with the ITS2 Database, simultaneously. Findings: We built anBackground: Hypnales comprise over 50% of all pleurocarpous mosses. They provide a young radiation complicating phylogenetic analyses. To resolve the hypnalean phylogeny, it is necessary to use a phylogenetic marker providing highly variable features to resolve species on the one hand and conserved features enabling a backbone analysis on the other. Therefore we used highly variable internal transcribed spacer 2 (ITS2) sequences and conserved secondary structures, as deposited with the ITS2 Database, simultaneously. Findings: We built an accurate and in parts robustly resolved large scale phylogeny for 1,634 currently available hypnalean ITS2 sequence-structure pairs. Conclusions: Profile Neighbor-Joining revealed a possible hypnalean backbone, indicating that most of the hypnalean taxa classified as different moss families are polyphyletic assemblages awaiting taxonomic changes.…
Autor(en): | Benjamin Merget, Matthias Wolf |
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URN: | urn:nbn:de:bvb:20-opus-67997 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Medizinische Fakultät / Institut für Virologie und Immunbiologie |
Sprache der Veröffentlichung: | Englisch |
Erscheinungsjahr: | 2010 |
Originalveröffentlichung / Quelle: | BMC RESEARCH NOTES (2010) 3:320, DOI: 10.1186/1756-0500-3-320 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Normierte Schlagworte (GND): | Moose |
Freie Schlagwort(e): | Bryophyta; Hypnales |
Datum der Freischaltung: | 02.03.2012 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung |