A molecular phylogeny of Hypnales (Bryophyta) inferred from ITS2 sequence-structure data

被引：18

作者：

Merget B. ^{[1
]}

Wolf M. ^{[1
]}

机构：

[1] Department of Bioinformatics, Biocenter, University of Würzburg, Am Hubland

来源：

BMC Research Notes | / 3卷 / 1期

关键词：

Distance Tree; General Time Reversible; Large Scale Approach; Pleurocarpous Moss; Large Scale Phylogenetic Analysis;

D O I：

10.1186/1756-0500-3-320

中图分类号：

学科分类号：

摘要：

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 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. © 2010 Wolf et al; licensee BioMed Central Ltd.

引用

共 40 条

[1]

Shaw J., Renzaglia K., Phylogeny and diversification of bryophytes, American Journal of Botany, 91, 10, (2004)

[2]

Troitsky A., Ignatov M., Bobrova V., Milyutina I., Contribution of genosystematics to current concepts of phylogeny and classification of bryophytes, Biochemistry (Moscow), 72, 12, pp. 1368-1376, (2007)

[3]

Brotherus V., Musci, Die Natuerlichen Pflanzenfamilien Engler A, 11, pp. 1-522, (1925)

[4]

Tsubota H., Arikawa T., Akiyama H., De Luna E., Gonzalez D., Higuchi M., Deguchi H., Molecular phylogeny of hypnobryalean mosses as inferred from a large-scale dataset of chloroplast rbcL, with special reference to the Hypnaceae and possibly related families, Hikobia, 13, pp. 645-665, (2002)

[5]

Shaw A., Cox C., Goffinet B., Buck W., Boles S., Phylogenetic evidence of a rapid radiation of pleurocarpous mosses (Bryophyta), Evolution, 57, 10, pp. 2226-2241, (2003)

[6]

O'Brien T., The Phylogenetic Distribution of Pleurocarpous Mosses: Evidence from cpDNA Sequences, Pleurocarpous Mosses: Systematics and Evolution, pp. 19-40, (2007)

[7]

Buck W., Goffinet B., Morphology and classification of mosses, Bryophyte Biology, 3, pp. 71-123, (2000)

[8]

Wahrmund U., Quandt D., Knoop V., The phylogeny of mosses-Addressing open issues with a new mitochondrial locus: Group i intron cobi420, Molecular Phylogenetics and Evolution, 54, 2, pp. 417-426, (2010)

[9]

Olsson S., Buchbender V., Enroth J., Hedenas L., Huttunen S., Quandt D., Phylogenetic analyses reveal high levels of polyphyly among pleurocarpous lineages as well as novel clades, The Bryologist, 112, 3, pp. 447-466, (2009)

[10]

Vanderpoorten A., Goffinet B., Quandt D., Utility of the internal transcribed spacers of the 18S-5.8 S-26 S nuclear ribosomal DNA in land plant systematics with special emphasis on Bryophytes, Plant Genome: Biodiversity and Evolution, 2, pp. 385-407, (2006)

← 1 2 3 4 →