Supraspecific Circumscription and Classification of Campylopus (Dicranaceae, Bryopsida) Based on Inferences from Sequence Data
Author: Stech, M.
Source: Systematic Botany, Volume 29, Number 4, October-December 2004 , pp. 817-824(8)
Publisher: American Society of Plant Taxonomists
Abstract:The monophyly of Campylopus and its relationships to other genera of the Dicranaceae-Campylopodioideae, especially Bryohumbertia and Pilopogon, have been ambiguous. To evaluate inter- and intrageneric relationships of Campylopus, maximum parsimony and maximum likelihood calculations of sequences from the chloroplast DNA (trnT UGU–trnL UAA spacer/ trnL UAA5' exon/trnL UAA intron, atpB – rbcL spacer) and the nuclear ribosomal DNA (ITS1/5.8S/ITS2/partial 26S) were performed. Analyses of the cpDNA sequences and the more conserved nrDNA parts (5.8S, partial ITS1, ITS2 and 26S) confirm the monophyly of a clade comprising the Campylopodioideae plus Leucobryum (Leucobryaceae), as proposed by previous molecular studies. Monophyly of Campylopus, including Bryohumbertia, and a sistergroup relationship to Pilopogon are also strongly supported by the cpDNA data. Relationships within Campylopus are only partially resolved due to low sequence variability in the cpDNA and homoplastic substitutions and indels. The present division of Campylopus into three subgenera is not supported by the molecular trees.
Document Type: Regular Paper
Publication date: October-December 2004
- Systematic Botany is the scientific journal of the American Society of Plant Taxonomists and publishes four issues per year.
2011 Impact Factor: 1.517
2011 ISI Journal Citation Reports® Rankings: 87/190 - Plant Sciences
34/45 - Evolutionary Biology
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- ingentaconnect is not responsible for the content or availability of external websites