A molecular phylogeny of Hypnales (Bryophyta) inferred from ITS2 sequence-structure data
Please always quote using this URN: urn:nbn:de:bvb:20-opus-67997
- 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.…
Author: | Benjamin Merget, Matthias Wolf |
---|---|
URN: | urn:nbn:de:bvb:20-opus-67997 |
Document Type: | Journal article |
Faculties: | Medizinische Fakultät / Institut für Virologie und Immunbiologie |
Language: | English |
Year of Completion: | 2010 |
Source: | BMC RESEARCH NOTES (2010) 3:320, DOI: 10.1186/1756-0500-3-320 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
GND Keyword: | Moose |
Tag: | Bryophyta; Hypnales |
Release Date: | 2012/03/02 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung |