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The paraphyly of Osmunda is confirmed by phylogenetic analyses of seven plastid loci

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Date
2008-03-01
Authors
Metzgar, JS
Skog, JE
Zimmer, EA
Pryer, KM
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Abstract
To resolve phylogenetic relationships among all genera and subgenera in Osmundaceae, we analyzed over 8,500 characters of DNA sequence data from seven plastid loci (atpA, rbcL, rbcL-accD, rbcL-atpB, rps4-trnS, trnG-trnR, and trnL-trnF). Our results confirm those from earlier anatomical and single-gene (rbcL) studies that suggested Osmunda s.l. is paraphyletic. Osmunda cinnamomea is sister to the remainder of Osmundaceae (Leptopteris, Todea, and Osmunda s.s.). We support the recognition of a monotypic fourth genus, Osmundastrum, to reflect these results. We also resolve subgeneric relationships within Osmunda s.s. and find that subg. Claytosmunda is strongly supported as sister to the rest of Osmunda. A stable, well-supported classification for extant Osmundaceae is proposed, along with a key to all genera and subgenera. © Copyright 2008 by the American Society of Plant Taxonomists.
Type
Journal article
Subject
Science & Technology
Life Sciences & Biomedicine
Plant Sciences
Evolutionary Biology
ferns
Osmunda
Osmundaceae
Osmundastrum
paraphyly
plastid DNA
NORTH-AMERICA
DNA
FERNS
BIOGEOGRAPHY
POPULATION
SEQUENCES
INFERENCE
EVOLUTION
MRBAYES
Permalink
https://hdl.handle.net/10161/21804
Published Version (Please cite this version)
10.1600/036364408783887528
Publication Info
Metzgar, JS; Skog, JE; Zimmer, EA; & Pryer, KM (2008). The paraphyly of Osmunda is confirmed by phylogenetic analyses of seven plastid loci. Systematic Botany, 33(1). pp. 31-36. 10.1600/036364408783887528. Retrieved from https://hdl.handle.net/10161/21804.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Pryer

Kathleen M. Pryer

Professor of Biology
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