Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini

Autores
Vanegas Rios, James Anyelo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Stevardiinae, which consists of 326 species and 44 genera, is a monophyletic subfamily within the family Characidae. In a recent classification of the subfamily, the tribe Stevardiini was expanded from three (Corynopoma, Gephyrocharax and Pterobrycon) to six genera by the addition of Chrysobrycon, Hysteronotus and Pseudocorynopoma. However, no morphological evidence has supported this definition of the tribe and the monophyly of Gephyrocharax. To address these issues, a phylogenetic study of most stevardiins focusing on Gephyrocharax was conducted. A data matrix including 532 characters and 213 taxa (73 stevardiines, 19 of which were stevardiins) was processed using maximum parsimony in TNT 1.5. All characters were analysed under extended implied weighting, exploring 21 k values. A strict consensus (comprising the most stables trees obtained) was used as the final topology. The results support the current definition of Stevardiini, as well as the monophyly of Chrysobrycon, Gephyrocharax and Pterobrycon. Corynopoma was obtained as the sister group of Gephyrocharax, the latter being phylogenetically diagnosed by two synapomorphies associated with caudal-fin morphology of adult males. The following interspecific relationships within Gephyrocharax are hypothesised: (G. martae ((G. chocoensis (G. major (G. atracaudatus, G. intermedius))) (G. venezuelae (G. sinuensis (G. Valencia (G. caucanus (G. melanocheir, G. torresi)))))))).
Fil: Vanegas Rios, James Anyelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina
Materia
Caudal Muscles
Chrysobrycon
Corynopoma
Extended Implied Weighting
Pouch Scale
Sexual Dimorphism
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/75236
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiiniVanegas Rios, James AnyeloCaudal MusclesChrysobryconCorynopomaExtended Implied WeightingPouch ScaleSexual Dimorphismhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Stevardiinae, which consists of 326 species and 44 genera, is a monophyletic subfamily within the family Characidae. In a recent classification of the subfamily, the tribe Stevardiini was expanded from three (Corynopoma, Gephyrocharax and Pterobrycon) to six genera by the addition of Chrysobrycon, Hysteronotus and Pseudocorynopoma. However, no morphological evidence has supported this definition of the tribe and the monophyly of Gephyrocharax. To address these issues, a phylogenetic study of most stevardiins focusing on Gephyrocharax was conducted. A data matrix including 532 characters and 213 taxa (73 stevardiines, 19 of which were stevardiins) was processed using maximum parsimony in TNT 1.5. All characters were analysed under extended implied weighting, exploring 21 k values. A strict consensus (comprising the most stables trees obtained) was used as the final topology. The results support the current definition of Stevardiini, as well as the monophyly of Chrysobrycon, Gephyrocharax and Pterobrycon. Corynopoma was obtained as the sister group of Gephyrocharax, the latter being phylogenetically diagnosed by two synapomorphies associated with caudal-fin morphology of adult males. The following interspecific relationships within Gephyrocharax are hypothesised: (G. martae ((G. chocoensis (G. major (G. atracaudatus, G. intermedius))) (G. venezuelae (G. sinuensis (G. Valencia (G. caucanus (G. melanocheir, G. torresi)))))))).Fil: Vanegas Rios, James Anyelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; ArgentinaWiley Blackwell Publishing, Inc2018-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/zipapplication/pdfhttp://hdl.handle.net/11336/75236Vanegas Rios, James Anyelo; Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini; Wiley Blackwell Publishing, Inc; Zoological Journal of the Linnean Society; 182; 4; 3-2018; 808-8290024-40821096-3642CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/zoolinnean/zlx045info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/zoolinnean/article/182/4/808/4080366info:eu-repo/semantics/openAccessAtribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)https://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:18Zoai:ri.conicet.gov.ar:11336/75236instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:47:18.603CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
title Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
spellingShingle Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
Vanegas Rios, James Anyelo
Caudal Muscles
Chrysobrycon
Corynopoma
Extended Implied Weighting
Pouch Scale
Sexual Dimorphism
title_short Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
title_full Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
title_fullStr Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
title_full_unstemmed Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
title_sort Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini
dc.creator.none.fl_str_mv Vanegas Rios, James Anyelo
author Vanegas Rios, James Anyelo
author_facet Vanegas Rios, James Anyelo
author_role author
dc.subject.none.fl_str_mv Caudal Muscles
Chrysobrycon
Corynopoma
Extended Implied Weighting
Pouch Scale
Sexual Dimorphism
topic Caudal Muscles
Chrysobrycon
Corynopoma
Extended Implied Weighting
Pouch Scale
Sexual Dimorphism
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Stevardiinae, which consists of 326 species and 44 genera, is a monophyletic subfamily within the family Characidae. In a recent classification of the subfamily, the tribe Stevardiini was expanded from three (Corynopoma, Gephyrocharax and Pterobrycon) to six genera by the addition of Chrysobrycon, Hysteronotus and Pseudocorynopoma. However, no morphological evidence has supported this definition of the tribe and the monophyly of Gephyrocharax. To address these issues, a phylogenetic study of most stevardiins focusing on Gephyrocharax was conducted. A data matrix including 532 characters and 213 taxa (73 stevardiines, 19 of which were stevardiins) was processed using maximum parsimony in TNT 1.5. All characters were analysed under extended implied weighting, exploring 21 k values. A strict consensus (comprising the most stables trees obtained) was used as the final topology. The results support the current definition of Stevardiini, as well as the monophyly of Chrysobrycon, Gephyrocharax and Pterobrycon. Corynopoma was obtained as the sister group of Gephyrocharax, the latter being phylogenetically diagnosed by two synapomorphies associated with caudal-fin morphology of adult males. The following interspecific relationships within Gephyrocharax are hypothesised: (G. martae ((G. chocoensis (G. major (G. atracaudatus, G. intermedius))) (G. venezuelae (G. sinuensis (G. Valencia (G. caucanus (G. melanocheir, G. torresi)))))))).
Fil: Vanegas Rios, James Anyelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina
description Stevardiinae, which consists of 326 species and 44 genera, is a monophyletic subfamily within the family Characidae. In a recent classification of the subfamily, the tribe Stevardiini was expanded from three (Corynopoma, Gephyrocharax and Pterobrycon) to six genera by the addition of Chrysobrycon, Hysteronotus and Pseudocorynopoma. However, no morphological evidence has supported this definition of the tribe and the monophyly of Gephyrocharax. To address these issues, a phylogenetic study of most stevardiins focusing on Gephyrocharax was conducted. A data matrix including 532 characters and 213 taxa (73 stevardiines, 19 of which were stevardiins) was processed using maximum parsimony in TNT 1.5. All characters were analysed under extended implied weighting, exploring 21 k values. A strict consensus (comprising the most stables trees obtained) was used as the final topology. The results support the current definition of Stevardiini, as well as the monophyly of Chrysobrycon, Gephyrocharax and Pterobrycon. Corynopoma was obtained as the sister group of Gephyrocharax, the latter being phylogenetically diagnosed by two synapomorphies associated with caudal-fin morphology of adult males. The following interspecific relationships within Gephyrocharax are hypothesised: (G. martae ((G. chocoensis (G. major (G. atracaudatus, G. intermedius))) (G. venezuelae (G. sinuensis (G. Valencia (G. caucanus (G. melanocheir, G. torresi)))))))).
publishDate 2018
dc.date.none.fl_str_mv 2018-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/75236
Vanegas Rios, James Anyelo; Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini; Wiley Blackwell Publishing, Inc; Zoological Journal of the Linnean Society; 182; 4; 3-2018; 808-829
0024-4082
1096-3642
CONICET Digital
CONICET
url http://hdl.handle.net/11336/75236
identifier_str_mv Vanegas Rios, James Anyelo; Phylogeny of the neotropical genus gephyrocharax (characiformes: Characidae: Stevardiinae), with remarks on the tribe stevardiini; Wiley Blackwell Publishing, Inc; Zoological Journal of the Linnean Society; 182; 4; 3-2018; 808-829
0024-4082
1096-3642
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/zoolinnean/zlx045
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/zoolinnean/article/182/4/808/4080366
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/zip
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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