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Phylogenetic relationships of the enigmatic fern families Hymenophyllopsidaceae and Lophosoriaceae: Evidence from rbcL nucleotide sequences

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Date
1999-01-01
Authors
Wolf, PG
Sipes, SD
White, MR
Martines, ML
Pryer, KM
Smith, AR
Ueda, K
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Abstract
Nucleotide sequences from rbcL were used to infer relationships of Lophosoriaceae and Hymenophyllopsidaceae. The phylogenetic positions of these two monotypic fern families have been debated, and neither group had been included in recent molecular systematic studies of ferns. Maximum parsimony analysis of our data supported a sister relationship between Lophosoria and Dicksonia, and also between Hymenophyllopsis and Cyathea. Thus, both newly-examined families appear to be part of a previously characterized and well-supported clade of tree ferns. The inferred relationships of Lophosoria are consistent with most (but not all) recent treatments. However, Hymenophyllopsis includes only small delicate plants superficially similar to filmy ferns (Hymenophyllaceae), very different from the large arborescent taxa. Nevertheless, some synapomorphic characteristics are shared with the tree fern clade. Further studies on gametophytes of Hymenophyllopsis are needed to test these hypotheses of relationship.
Type
Journal article
Subject
Science & Technology
Life Sciences & Biomedicine
Plant Sciences
Evolutionary Biology
Hymenophyllopsis
Lophosoria
molecular systematics
evolution
rbcL
phylogeny
CHLOROPLAST DNA
MORPHOLOGY
Permalink
https://hdl.handle.net/10161/21855
Published Version (Please cite this version)
10.1007/BF00985583
Publication Info
Wolf, PG; Sipes, SD; White, MR; Martines, ML; Pryer, KM; Smith, AR; & Ueda, K (1999). Phylogenetic relationships of the enigmatic fern families Hymenophyllopsidaceae and Lophosoriaceae: Evidence from rbcL nucleotide sequences. Plant Systematics and Evolution, 219(3-4). pp. 263-270. 10.1007/BF00985583. Retrieved from https://hdl.handle.net/10161/21855.
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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Pryer

Kathleen M. Pryer

Professor of Biology
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