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Citation for Study 18189

Citation title: "Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera.".

Study name: "Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera.".

This study is part of submission 18189 (Status: Published).

Citation

Almeida T.E., Hennequin S., Schneider H., Smith A., Batista J.A., Ramalho A.J., Proite K., & Salino A. 2016. Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera. Molecular Phylogenetics and Evolution, .

Authors

• Almeida T.E. (submitter) 5593981007707
• Hennequin S.
• Schneider H.
• Smith A.
• Batista J.A. 55-31-34092674
• Ramalho A.J.
• Proite K.
• Salino A.

Abstract

Thelypteridaceae is one of the largest fern families, having about 950 species and a cosmopolitan distribution but with most species occurring in tropical and subtropical regions. Its generic classification remains controversial, with different authors recognizing from one up to 32 genera. Phylogenetic relationships within the family have not been exhaustively studied, but previous studies have confirmed the monophyly of the lineage. Thus far, sampling has been inadequate for establishing a robust hypothesis of infrafamilial relationships within the family. In order to understand phylogenetic relationships within Thelypteridaceae and thus to improve generic reclassification, we expand the molecular sampling, including new samples of Old World taxa and, especially, many additional neotropical representatives. We also explore the monophyly of exclusively or mostly neotropical genera Amauropelta, Goniopteris, Meniscium, and Steiropteris. Our sampling includes 70 taxa and 121 newly generated sequences from two plastid genomic regions (rps4-trnS and trnL-trnF), plus 71 rps4 and 70 trnL-trnF sequences from GenBank. These data resulted in a concatenated matrix of 1980 molecular characters for 143 taxa. The combined data set was analyzed using maximum parsimony and bayesian inference of phylogeny. Our results are consistent with the general topological structure found in previous studies, including two main lineages within the family: phegopteroid and thelypteroid. The thelypteroid lineage comprises two clades; one of these included the segregates Metathelypteris, Coryphopteris, and Amauropelta (including part of Parathelypteris), whereas the other comprises all segregates of Cyclosorus s.l., such as Goniopteris, Meniscium, and Steiropteris (including Thelypteris polypodioides, previously incertae sedis). The three mainly neotropical segregates were found to be monophyletic but nested in a broadly defined Cyclosorus. The fourth mainly neotropical segregate, Amauropelta, was found to comprise species considered to be part of the Parathelypteris. In Old World thelypteroids, which correspond to nearly half the diversity in the family, an increase in sampling is still needed to resolve relationships and circumscription of genera, particularly in the christelloid clade (i.e., Amphineuron, Chingia, Christella, Pneumatopteris, Pronephrium, and Sphaerostephanos). Based on currently available knowledge, we propose the recognition of 16 genera in the family.

Keywords

ferns, phylogeny, generic rearrangement, Neotropics, Paleotropics

External links

• DOI: 10.1016/j.ympev.2015.09.009

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S18189
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref25027,
  	 author = {Thais Elias Almeida and Sabine  Hennequin and Harald   Schneider and Alan R.  Smith and Joao Aguiar Nogueira Batista and Aline Joseph Ramalho and Karina  Proite and Alexandre  Salino},
  	 title = {Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera.},
  	 year = {2016},
  	 keywords = {ferns, phylogeny, generic rearrangement, Neotropics, Paleotropics},
  	 doi = {10.1016/j.ympev.2015.09.009},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Molecular Phylogenetics and Evolution},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Thelypteridaceae is one of the largest fern families, having about 950 species and a cosmopolitan distribution but with most species occurring in tropical and subtropical regions. Its generic classification remains controversial, with different authors recognizing from one up to 32 genera. Phylogenetic relationships within the family have not been exhaustively studied, but previous studies have confirmed the monophyly of the lineage. Thus far, sampling has been inadequate for establishing a robust hypothesis of infrafamilial relationships within the family. In order to understand phylogenetic relationships within Thelypteridaceae and thus to improve generic reclassification, we expand the molecular sampling, including new samples of Old World taxa and, especially, many additional neotropical representatives. We also explore the monophyly of exclusively or mostly neotropical genera Amauropelta, Goniopteris, Meniscium, and Steiropteris. Our sampling includes 70 taxa and 121 newly generated sequences from two plastid genomic regions (rps4-trnS and trnL-trnF), plus 71 rps4 and 70 trnL-trnF sequences from GenBank. These data resulted in a concatenated matrix of 1980 molecular characters for 143 taxa. The combined data set was analyzed using maximum parsimony and bayesian inference of phylogeny. Our results are consistent with the general topological structure found in previous studies, including two main lineages within the family: phegopteroid and thelypteroid. The thelypteroid lineage comprises two clades; one of these included the segregates Metathelypteris, Coryphopteris, and Amauropelta (including part of Parathelypteris), whereas the other comprises all segregates of Cyclosorus s.l., such as Goniopteris, Meniscium, and Steiropteris (including Thelypteris polypodioides, previously incertae sedis). The three mainly neotropical segregates were found to be monophyletic but nested in a broadly defined Cyclosorus. The fourth mainly neotropical segregate, Amauropelta, was found to comprise species considered to be part of the Parathelypteris. In Old World thelypteroids, which correspond to nearly half the diversity in the family, an increase in sampling is still needed to resolve relationships and circumscription of genera, particularly in the christelloid clade (i.e., Amphineuron, Chingia, Christella, Pneumatopteris, Pronephrium, and Sphaerostephanos). Based on currently available knowledge, we propose the recognition of 16 genera in the family.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 25027
  AU  - Almeida,Thais Elias
  AU  - Hennequin,Sabine 
  AU  - Schneider,Harald  
  AU  - Smith,Alan R. 
  AU  - Batista,Joao Aguiar Nogueira
  AU  - Ramalho,Aline Joseph
  AU  - Proite,Karina 
  AU  - Salino,Alexandre 
  T1  - Towards a phylogenetic generic classification of Thelypteridaceae: Additional sampling suggests alterations of neotropical taxa and further study of paleotropical genera.
  PY  - 2016
  KW  - ferns
  KW  - phylogeny
  KW  - generic rearrangement
  KW  - Neotropics
  KW  - Paleotropics
  UR  - http://dx.doi.org/10.1016/j.ympev.2015.09.009
  N2  - Thelypteridaceae is one of the largest fern families, having about 950 species and a cosmopolitan distribution but with most species occurring in tropical and subtropical regions. Its generic classification remains controversial, with different authors recognizing from one up to 32 genera. Phylogenetic relationships within the family have not been exhaustively studied, but previous studies have confirmed the monophyly of the lineage. Thus far, sampling has been inadequate for establishing a robust hypothesis of infrafamilial relationships within the family. In order to understand phylogenetic relationships within Thelypteridaceae and thus to improve generic reclassification, we expand the molecular sampling, including new samples of Old World taxa and, especially, many additional neotropical representatives. We also explore the monophyly of exclusively or mostly neotropical genera Amauropelta, Goniopteris, Meniscium, and Steiropteris. Our sampling includes 70 taxa and 121 newly generated sequences from two plastid genomic regions (rps4-trnS and trnL-trnF), plus 71 rps4 and 70 trnL-trnF sequences from GenBank. These data resulted in a concatenated matrix of 1980 molecular characters for 143 taxa. The combined data set was analyzed using maximum parsimony and bayesian inference of phylogeny. Our results are consistent with the general topological structure found in previous studies, including two main lineages within the family: phegopteroid and thelypteroid. The thelypteroid lineage comprises two clades; one of these included the segregates Metathelypteris, Coryphopteris, and Amauropelta (including part of Parathelypteris), whereas the other comprises all segregates of Cyclosorus s.l., such as Goniopteris, Meniscium, and Steiropteris (including Thelypteris polypodioides, previously incertae sedis). The three mainly neotropical segregates were found to be monophyletic but nested in a broadly defined Cyclosorus. The fourth mainly neotropical segregate, Amauropelta, was found to comprise species considered to be part of the Parathelypteris. In Old World thelypteroids, which correspond to nearly half the diversity in the family, an increase in sampling is still needed to resolve relationships and circumscription of genera, particularly in the christelloid clade (i.e., Amphineuron, Chingia, Christella, Pneumatopteris, Pronephrium, and Sphaerostephanos). Based on currently available knowledge, we propose the recognition of 16 genera in the family.
  L3  - 10.1016/j.ympev.2015.09.009
  JF  - Molecular Phylogenetics and Evolution
  VL  - 
  IS  - 
  ER  -