Patterns of diversification in the xeric-adapted fern genus myriopteris (Pteridaceae)
Repository Usage Stats
Strong selective pressures imposed by drought-prone habitats have contributed to extensive morphological convergence among the 400 + species of cheilanthoid ferns (Pteridaceae). As a result, generic circumscriptions based exclusively on macromorphology often prove to be non-monophyletic. Ongoing molecular phylogenetic analyses are providing the foundation for a revised classification of this challenging group and have begun to clarify its complex evolutionary history. As part of this effort, we generated and analyzed DNA sequence data for three plastid loci (rbcL, atpA, and the intergenic spacer trnG-trnR) for the myriopterid clade, one of the largest monophyletic groups of cheilanthoid ferns. This lineage encompasses 47 primarily North and Central American taxa previously included in Cheilanthes but now placed in the recircumscribed genus Myriopteris. Here, we infer a phylogeny for the group and examine key morphological characters across this phylogeny. We also include a brief discussion of the three well-supported Myriopteris subclades, along with a review of reproductive mode and known ploidy levels for members of this early diverging lineage of cheilanthoid ferns. © Copyright 2014 by the American Society of Plant Taxonomists.
SubjectScience & Technology
Life Sciences & Biomedicine
BAYESIAN PHYLOGENETIC INFERENCE
Published Version (Please cite this version)10.1600/036364414X681518
Publication InfoGrusz, AL; Windham, MD; Yatskievych, G; Huiet, L; Gastony, GJ; & Pryer, KM (2014). Patterns of diversification in the xeric-adapted fern genus myriopteris (Pteridaceae). Systematic Botany, 39(3). pp. 698-714. 10.1600/036364414X681518. Retrieved from https://hdl.handle.net/10161/21820.
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.
More InfoShow full item record
Kathleen M. Pryer
Professor of Biology
Articles written by Duke faculty are made available through the campus open access policy. For more information see: Duke Open Access Policy
Rights for Collection: Scholarly Articles
Works are deposited here by their authors, and represent their research and opinions, not that of Duke University. Some materials and descriptions may include offensive content. More info