Welcome to Bulletin of Botanical Research! Today is Share:

Bulletin of Botanical Research ›› 2011, Vol. 31 ›› Issue (6): 664-673.doi: 10.7525/j.issn.1673-5102.2011.06.005

Previous Articles     Next Articles

New Evidence of Phylogeny in Bryaceae(Musci) Based on the ITS Region

WANG Chen-Ying;LI Da-Lin;ZHAO Jian-Cheng*   

  1. 1.Department of Life Science,Zhengzhou Teachers College,Zhengzhou 450044;2.Saihanba Mechanized Tree Farm,Weichang 068466;3.College of Life Science,Hebei Normal University,Shijiazhuang 050016
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-11-20 Published:2011-11-20
  • Contact: ZHAO Jian-Cheng
  • Supported by:

Abstract: The Bryaceae phylogeny was reconstructed based on the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA. Both Maximum parsimony and Bayesian inference analyses of ITS sequences revealed two well supported ingroup clades. One lineage contained Pohlia species whereas the other lineage contained species from five other genera—Rhodobryum, Brachymenium, Bryum, Plagiobryum and Anomobryum. Inconsistent with previous chloroplast DNA phylogenies, the ITS tree showed that the genus Pohlia was not more closely related to the outgroup family Mniaceae than to Bryaceae. In the other lineage, some Bryum species, such as B.algovicum, B.capillare, B.pallescens, B.pallens, B.pseudotriquetrum, B.uliginosum, B.amblyodon, B.caespiticium and B.lonchocaulon, clustered with high support with Plagiobryum zierii, which was also suggested by other molecular datasets. Based on the ITS tree, we supported the proposed shift for these Bryum species and Plagiobryum zierii to the genus Ptychostomum.

Key words: Bryaceae, ITS, phylogeny, Pohlia, Ptychostomum

CLC Number: