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Citation for Study 11224

Citation title: "Vigna (Leguminosae) sensu lato: the Names and Identities of the American Segregate Genera".

Study name: "Vigna (Leguminosae) sensu lato: the Names and Identities of the American Segregate Genera".

This study is part of submission 11214 (Status: Published).

Citation

Delgado-salinas A., Thulin M., Pasquet R., Weeden N., & Lavin M. 2011. Vigna (Leguminosae) sensu lato: the Names and Identities of the American Segregate Genera. American Journal of Botany, 98(10): 1694?1715.

Authors

• Delgado-salinas A.
• Thulin M.
• Pasquet R.
• Weeden N.
• Lavin M.

Abstract

Premise of study: The legume genus Vigna and close relatives have highly elaborated floral morphologies that involve the coiling, bending, and intricate connection of flower parts. Banners, levers, platforms, and pumps have evolved that attract pollinators and then manipulate their movement. Given this three-dimensional floral complexity, the taxonomy of Vigna and relatives has been confounded by the study of mostly two-dimensional museum specimens. A molecular phylogenetic analysis was undertaken in the effort to resolve long-standing taxonomic questions centered on floral morphology. Methods: The phylogenetic analysis included cpDNA trnK and nuclear ribosomal ITS/5.8S (ITS) sequence variation. The American species were comprehensively sampled and outgroups included Old World relatives. Key results: The trnK and ITS data analyses concurred in resolving six well-supported clades of American Vigna that are most closely related to other American genera: Dolichopsis, Macroptilium, Mysanthus, Oryxis, Oxyrhynchus, Phaseolus, Ramirezella, and Strophostyles. These 14 American clades ranked here as genera are resolved as sister to a clade comprising the mainly Old World species of Vigna. Conclusions: American Vigna clades were reassigned to the genera Ancistrotropis, Cochliasanthus, Condylostylis, Leptospron, Sigmoidotropis, and the newly described Helicotropis. Vigna sensu stricto in the Americas now includes relatively few and mostly pantropical species. Elaborate floral asymmetries are readily used to apomorphically diagnose nearly all of the American genera. The age estimates of the extant diversification of the American and its Old World sister clade are approximately coeval at ca. 6?7 million yr, which belies much greater floral variation in the Americas.

Keywords

biogeography; floral evolution; geographic phylogenetic structure; Phaseolus; phylogenetic systematics; rates analysis.

External links

• DOI: 10.3732/ajb.1100069

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S11224
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref19483,
  	 author = {Alfonso  Delgado-Salinas and Mats  Thulin and Remy  Pasquet and Norman F.  Weeden and Matthew T.  Lavin},
  	 title = {Vigna (Leguminosae) sensu lato: the Names and Identities of the American Segregate Genera},
  	 year = {2011},
  	 keywords = {biogeography; floral evolution; geographic phylogenetic structure; Phaseolus; phylogenetic systematics; rates analysis.},
  	 doi = {10.3732/ajb.1100069},
  	 url = {http://},
  	 pmid = {},
  	 journal = {American Journal of Botany},
  	 volume = {98},
  	 number = {10},
  	 pages = {1694?1715},
  	 abstract = {Premise of study: The legume genus Vigna and close relatives have highly elaborated floral morphologies that involve the coiling, bending, and intricate connection of flower parts. Banners, levers, platforms, and pumps have evolved that attract pollinators and then manipulate their movement. Given this three-dimensional floral complexity, the taxonomy of Vigna and relatives has been confounded by the study of mostly two-dimensional museum specimens. A molecular phylogenetic analysis was undertaken in the effort to resolve long-standing taxonomic questions centered on floral morphology.
  Methods: The phylogenetic analysis included cpDNA trnK and nuclear ribosomal ITS/5.8S (ITS) sequence variation. The American species were comprehensively sampled and outgroups included Old World relatives.
  Key results: The trnK and ITS data analyses concurred in resolving six well-supported clades of American Vigna that are most closely related to other American genera: Dolichopsis, Macroptilium, Mysanthus, Oryxis, Oxyrhynchus, Phaseolus, Ramirezella, and Strophostyles. These 14 American clades ranked here as genera are resolved as sister to a clade comprising the mainly Old World species of Vigna.
  Conclusions: American Vigna clades were reassigned to the genera Ancistrotropis, Cochliasanthus, Condylostylis, Leptospron, Sigmoidotropis, and the newly described Helicotropis. Vigna sensu stricto in the Americas now includes relatively few and mostly pantropical species. Elaborate floral asymmetries are readily used to apomorphically diagnose nearly all of the American genera. The age estimates of the extant diversification of the American and its Old World sister clade are approximately coeval at ca. 6?7 million yr, which belies much greater floral variation in the Americas.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 19483
  AU  - Delgado-Salinas,Alfonso 
  AU  - Thulin,Mats 
  AU  - Pasquet,Remy 
  AU  - Weeden,Norman F. 
  AU  - Lavin,Matthew T. 
  T1  - Vigna (Leguminosae) sensu lato: the Names and Identities of the American Segregate Genera
  PY  - 2011
  KW  - biogeography; floral evolution; geographic phylogenetic structure; Phaseolus; phylogenetic systematics; rates analysis.
  UR  - http://dx.doi.org/10.3732/ajb.1100069
  N2  - Premise of study: The legume genus Vigna and close relatives have highly elaborated floral morphologies that involve the coiling, bending, and intricate connection of flower parts. Banners, levers, platforms, and pumps have evolved that attract pollinators and then manipulate their movement. Given this three-dimensional floral complexity, the taxonomy of Vigna and relatives has been confounded by the study of mostly two-dimensional museum specimens. A molecular phylogenetic analysis was undertaken in the effort to resolve long-standing taxonomic questions centered on floral morphology.
  Methods: The phylogenetic analysis included cpDNA trnK and nuclear ribosomal ITS/5.8S (ITS) sequence variation. The American species were comprehensively sampled and outgroups included Old World relatives.
  Key results: The trnK and ITS data analyses concurred in resolving six well-supported clades of American Vigna that are most closely related to other American genera: Dolichopsis, Macroptilium, Mysanthus, Oryxis, Oxyrhynchus, Phaseolus, Ramirezella, and Strophostyles. These 14 American clades ranked here as genera are resolved as sister to a clade comprising the mainly Old World species of Vigna.
  Conclusions: American Vigna clades were reassigned to the genera Ancistrotropis, Cochliasanthus, Condylostylis, Leptospron, Sigmoidotropis, and the newly described Helicotropis. Vigna sensu stricto in the Americas now includes relatively few and mostly pantropical species. Elaborate floral asymmetries are readily used to apomorphically diagnose nearly all of the American genera. The age estimates of the extant diversification of the American and its Old World sister clade are approximately coeval at ca. 6?7 million yr, which belies much greater floral variation in the Americas.
  L3  - 10.3732/ajb.1100069
  JF  - American Journal of Botany
  VL  - 98
  IS  - 10
  ER  -