Journal ArticleDOI
Toward a monophyletic Notholaena (Pteridaceae) : resolving patterns of evolutionary convergence in xeric-adapted ferns
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TLDR
The phylogenetic hypothesis presented here helps to resolve outstanding nomenclatural issues and provides a basis for examining character evolution within this diverse, desert-adapted clade of ferns.Abstract:
Cheilanthoid ferns (Pteridaceae) are a diverse and ecologically important clade, unusual among ferns for their ability to colonize and diversify within xeric habitats. These extreme habitats are thought to drive the extensive evolutionary convergence, and thus morphological homoplasy, that has long thwarted a natural classification of cheilanthoid ferns. Here we present the first multigene phylogeny to focus on taxa traditionally assigned to the large genus Notholaena. New World taxa (Notholaena sensu Tryon) are only distantly related to species occurring in the Old World (Notholaena sensu Pichi Sermolli). The circumscription of Notholaena adopted in recent American floras is shown to be paraphyletic, with species usually assigned to Cheilanthes and Cheiloplecton nested within it. The position of Cheiloplecton is particularly surprising-given its well-developed false indusium and non-farinose blade, it is morphologically anomalous within the "notholaenoids". In addition to clarifying natural relationships, the phylogenetic hypothesis presented here helps to resolve outstanding nomenclatural issues and provides a basis for examining character evolution within this diverse, desert-adapted clade.read more
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A community-derived classification for extant lycophytes and ferns
Eric Schuettpelz,Harald Schneider,Alan R. Smith,Peter Hovenkamp,Jefferson Prado,Germinal Rouhan,Alexandre Salino,Michael A. Sundue,Thaís Elias Almeida,Barbara S. Parris,Emily B. Sessa,Ashley R. Field,André Luís de Gasper,Carl J. Rothfels,Michael D. Windham,Marcus Lehnert,Benjamin Dauphin,Atsushi Ebihara,Samuli Lehtonen,Pedro Bond Schwartsburd,Jordan S. Metzgar,Li-Bing Zhang,Li-Yaung Kuo,Patrick J. Brownsey,Masahiro Kato,Marcelo D. Arana,Francine Costa Assis,Michael S. Barker,David S. Barrington,Ho-Ming Chang,Yi-Han Chang,Yi-Shan Chao,Cheng-Wei Chen,De-Kui Chen,Wen-Liang Chiou,Vinícius Antonio de Oliveira Dittrich,Yi-Fan Duan,Jean-Yves Dubuisson,Donald R. Farrar,Susan Fawcett,Jose María Gabriel y Galán,Luiz Armando de Araújo Góes-Neto,Jason R. Grant,Amanda L. Grusz,Christopher H. Haufler,Warren D. Hauk,Hai He,Sabine Hennequin,Regina Y. Hirai,Layne Huiet,Michael Kessler,Petra Korall,Paulo H. Labiak,Anders Larsson,Blanca León,Chun-Xiang Li,Fay-Wei Li,Melanie A. Link-Pérez,Hong-Mei Liu,Ngan Thi Lu,Esteban I. Meza-Torres,Xin-Yuan Miao,Robbin C. Moran,Claudine M. Mynssen,Nathalie S. Nagalingum,Benjamin Øllgaard,Alison M. Paul,Jovani B. S. Pereira,Leon R. Perrie,M. Mónica Ponce,Tom A. Ranker,Christian Schulz,Wataru Shinohara,Alexander Shmakov,Erin M. Sigel,Filipe Soares de Souza,Lana da Silva Sylvestre,Weston Testo,Luz Amparo Triana-Moreno,Chie Tsutsumi,Hanna Tuomisto,Ivan A. Valdespino,Alejandra Vasco,Raquel Stauffer Viveros,Alan S. Weakley,Ran Wei,Stina Weststrand,Paul G. Wolf,George Yatskievych,Xiao-Gang Xu,Yue-Hong Yan,Liang Zhang,Xian-Chun Zhang,Xin-Mao Zhou +93 more
TL;DR: A modern, comprehensive classification for lycophytes and ferns, down to the genus level, utilizing a community‐based approach, that uses monophyly as the primary criterion for the recognition of taxa, but also aims to preserve existing taxa and circumscriptions that are both widely accepted and consistent with the understanding of pteridophyte phylogeny.
Journal ArticleDOI
Recently Formed Polyploid Plants Diversify at Lower Rates
Itay Mayrose,Shing Hei Zhan,Carl J. Rothfels,Karen Magnuson-Ford,Michael S. Barker,Loren H. Rieseberg,Loren H. Rieseberg,Sarah P. Otto +7 more
TL;DR: Likelihood-based analyses indicate that polyploids generally exhibit lower speciation rates and higher extinction rates than diploids, providing the first quantitative corroboration of the dead-end hypothesis.
Journal ArticleDOI
A linear sequence of extant families and genera of lycophytes and ferns
TL;DR: A linear classification to the extant lycophytes and ferns based on current phylogenetic knowledge is provided, which provides a standardized guide for organisation of fern collections into a more natural sequence.
Journal ArticleDOI
The Pteridophytes of Mexico
TL;DR: This engaging and information-packed volume on the arrival and impact of plants that the Europeans brought to the New World and the arrival with them of their favorite plants is a thoroughly researched and readable book that will interest all readers of this journal.
Journal ArticleDOI
Trends and concepts in fern classification
TL;DR: A classification is presented based on the current understanding of relationships of fern and lycopod clades, which shows a trend from highly artificial, based on an interpretation of a few extrinsic characters, to natural classifications derived from a multitude of intrinsic characters.
References
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MrBayes 3: Bayesian phylogenetic inference under mixed models
TL;DR: MrBayes 3 performs Bayesian phylogenetic analysis combining information from different data partitions or subsets evolving under different stochastic evolutionary models to analyze heterogeneous data sets and explore a wide variety of structured models mixing partition-unique and shared parameters.
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The comparative method in evolutionary biology
Paul H. Harvey,Mark Pagel +1 more
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