Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry
- Autores
- Cunha, Haydeé A.; Loizaga de Castro, Rocio; Secchi, Eduardo Resende; Crespo, Enrique Alberto; Lailson Brito, José; Azevedo, Alexandre F.; Lazoski, Cristiano; Solé Cava, Antonio M.
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The taxonomy of common dolphins (Delphinus sp.) has always been controversial, with over twenty described species since the original description of the type species of the genus (Delphinus delphis Linnaeus, 1758). Two species and four subspecies are currently accepted, but recent molecular data have challenged this view. In this study we investigated the molecular taxonomy of common dolphins through analyses of cytochrome b sequences of 297 individuals from most of their distribution. We included 37 novel sequences from the Southwestern Atlantic Ocean, a region where the short- and long-beaked morphotypesoccur in sympatry, but which had not been well sampled before. Skulls of individuals from the Southwestern Atlantic were measured to test the validity of the rostral index as a diagnostic character and confirmed the presence of the two morphotypes in our genetic sample. Our genetic results show that all common dolphins in the Atlantic Ocean belong to a single species, Delphinus delphis. According to genetic data, the species Delphinus capensis is invalid. Long-beaked common dolphins from the Northeastern Pacific Ocean may constitutea different species. Our conclusions prompt the need for revision of currently accepted common dolphin species and subspecies and of Delphinus delphis distribution.
Fil: Cunha, Haydeé A.. Universidade Do Estado de Rio Do Janeiro; Brasil
Fil: Loizaga de Castro, Rocio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Secchi, Eduardo Resende. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Lailson Brito, José. Universidade Do Estado Do Rio de Janeiro; Brasil
Fil: Azevedo, Alexandre F.. Universidade Do Estado de Rio Do Janeiro; Brasil
Fil: Lazoski, Cristiano. Universidade Federal do Rio de Janeiro; Brasil
Fil: Solé Cava, Antonio M.. Universidade Federal do Rio de Janeiro; Brasil - Materia
-
SYSTEMATICS
TAXONOMY
DELPHINUS DELPHIS
DELPHINUS CAPENSIS
DELPHINUS BAIRDII
DELPHINUS CAPENSIS TROPICALIS
DELPHINIDAE
CYTOCHROME B
MORPHOTYPE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/44403
Ver los metadatos del registro completo
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spelling |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in SympatryCunha, Haydeé A.Loizaga de Castro, RocioSecchi, Eduardo ResendeCrespo, Enrique AlbertoLailson Brito, JoséAzevedo, Alexandre F.Lazoski, CristianoSolé Cava, Antonio M.SYSTEMATICSTAXONOMYDELPHINUS DELPHISDELPHINUS CAPENSISDELPHINUS BAIRDIIDELPHINUS CAPENSIS TROPICALISDELPHINIDAECYTOCHROME BMORPHOTYPEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The taxonomy of common dolphins (Delphinus sp.) has always been controversial, with over twenty described species since the original description of the type species of the genus (Delphinus delphis Linnaeus, 1758). Two species and four subspecies are currently accepted, but recent molecular data have challenged this view. In this study we investigated the molecular taxonomy of common dolphins through analyses of cytochrome b sequences of 297 individuals from most of their distribution. We included 37 novel sequences from the Southwestern Atlantic Ocean, a region where the short- and long-beaked morphotypesoccur in sympatry, but which had not been well sampled before. Skulls of individuals from the Southwestern Atlantic were measured to test the validity of the rostral index as a diagnostic character and confirmed the presence of the two morphotypes in our genetic sample. Our genetic results show that all common dolphins in the Atlantic Ocean belong to a single species, Delphinus delphis. According to genetic data, the species Delphinus capensis is invalid. Long-beaked common dolphins from the Northeastern Pacific Ocean may constitutea different species. Our conclusions prompt the need for revision of currently accepted common dolphin species and subspecies and of Delphinus delphis distribution.Fil: Cunha, Haydeé A.. Universidade Do Estado de Rio Do Janeiro; BrasilFil: Loizaga de Castro, Rocio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Secchi, Eduardo Resende. Universidade Federal do Rio Grande do Sul; BrasilFil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Lailson Brito, José. Universidade Do Estado Do Rio de Janeiro; BrasilFil: Azevedo, Alexandre F.. Universidade Do Estado de Rio Do Janeiro; BrasilFil: Lazoski, Cristiano. Universidade Federal do Rio de Janeiro; BrasilFil: Solé Cava, Antonio M.. Universidade Federal do Rio de Janeiro; BrasilPublic Library of Science2015-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44403Cunha, Haydeé A.; Loizaga de Castro, Rocio; Secchi, Eduardo Resende; Crespo, Enrique Alberto; Lailson Brito, José; et al.; Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry; Public Library of Science; Plos One; 10; 11; 11-2015; 1-15; e01402511932-6203CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0140251info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0140251info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:56:20Zoai:ri.conicet.gov.ar:11336/44403instacron: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:34982025-09-29 09:56:20.698CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry |
title |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry |
spellingShingle |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry Cunha, Haydeé A. SYSTEMATICS TAXONOMY DELPHINUS DELPHIS DELPHINUS CAPENSIS DELPHINUS BAIRDII DELPHINUS CAPENSIS TROPICALIS DELPHINIDAE CYTOCHROME B MORPHOTYPE |
title_short |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry |
title_full |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry |
title_fullStr |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry |
title_full_unstemmed |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry |
title_sort |
Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry |
dc.creator.none.fl_str_mv |
Cunha, Haydeé A. Loizaga de Castro, Rocio Secchi, Eduardo Resende Crespo, Enrique Alberto Lailson Brito, José Azevedo, Alexandre F. Lazoski, Cristiano Solé Cava, Antonio M. |
author |
Cunha, Haydeé A. |
author_facet |
Cunha, Haydeé A. Loizaga de Castro, Rocio Secchi, Eduardo Resende Crespo, Enrique Alberto Lailson Brito, José Azevedo, Alexandre F. Lazoski, Cristiano Solé Cava, Antonio M. |
author_role |
author |
author2 |
Loizaga de Castro, Rocio Secchi, Eduardo Resende Crespo, Enrique Alberto Lailson Brito, José Azevedo, Alexandre F. Lazoski, Cristiano Solé Cava, Antonio M. |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
SYSTEMATICS TAXONOMY DELPHINUS DELPHIS DELPHINUS CAPENSIS DELPHINUS BAIRDII DELPHINUS CAPENSIS TROPICALIS DELPHINIDAE CYTOCHROME B MORPHOTYPE |
topic |
SYSTEMATICS TAXONOMY DELPHINUS DELPHIS DELPHINUS CAPENSIS DELPHINUS BAIRDII DELPHINUS CAPENSIS TROPICALIS DELPHINIDAE CYTOCHROME B MORPHOTYPE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The taxonomy of common dolphins (Delphinus sp.) has always been controversial, with over twenty described species since the original description of the type species of the genus (Delphinus delphis Linnaeus, 1758). Two species and four subspecies are currently accepted, but recent molecular data have challenged this view. In this study we investigated the molecular taxonomy of common dolphins through analyses of cytochrome b sequences of 297 individuals from most of their distribution. We included 37 novel sequences from the Southwestern Atlantic Ocean, a region where the short- and long-beaked morphotypesoccur in sympatry, but which had not been well sampled before. Skulls of individuals from the Southwestern Atlantic were measured to test the validity of the rostral index as a diagnostic character and confirmed the presence of the two morphotypes in our genetic sample. Our genetic results show that all common dolphins in the Atlantic Ocean belong to a single species, Delphinus delphis. According to genetic data, the species Delphinus capensis is invalid. Long-beaked common dolphins from the Northeastern Pacific Ocean may constitutea different species. Our conclusions prompt the need for revision of currently accepted common dolphin species and subspecies and of Delphinus delphis distribution. Fil: Cunha, Haydeé A.. Universidade Do Estado de Rio Do Janeiro; Brasil Fil: Loizaga de Castro, Rocio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Secchi, Eduardo Resende. Universidade Federal do Rio Grande do Sul; Brasil Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Lailson Brito, José. Universidade Do Estado Do Rio de Janeiro; Brasil Fil: Azevedo, Alexandre F.. Universidade Do Estado de Rio Do Janeiro; Brasil Fil: Lazoski, Cristiano. Universidade Federal do Rio de Janeiro; Brasil Fil: Solé Cava, Antonio M.. Universidade Federal do Rio de Janeiro; Brasil |
description |
The taxonomy of common dolphins (Delphinus sp.) has always been controversial, with over twenty described species since the original description of the type species of the genus (Delphinus delphis Linnaeus, 1758). Two species and four subspecies are currently accepted, but recent molecular data have challenged this view. In this study we investigated the molecular taxonomy of common dolphins through analyses of cytochrome b sequences of 297 individuals from most of their distribution. We included 37 novel sequences from the Southwestern Atlantic Ocean, a region where the short- and long-beaked morphotypesoccur in sympatry, but which had not been well sampled before. Skulls of individuals from the Southwestern Atlantic were measured to test the validity of the rostral index as a diagnostic character and confirmed the presence of the two morphotypes in our genetic sample. Our genetic results show that all common dolphins in the Atlantic Ocean belong to a single species, Delphinus delphis. According to genetic data, the species Delphinus capensis is invalid. Long-beaked common dolphins from the Northeastern Pacific Ocean may constitutea different species. Our conclusions prompt the need for revision of currently accepted common dolphin species and subspecies and of Delphinus delphis distribution. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-11 |
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/11336/44403 Cunha, Haydeé A.; Loizaga de Castro, Rocio; Secchi, Eduardo Resende; Crespo, Enrique Alberto; Lailson Brito, José; et al.; Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry; Public Library of Science; Plos One; 10; 11; 11-2015; 1-15; e0140251 1932-6203 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/44403 |
identifier_str_mv |
Cunha, Haydeé A.; Loizaga de Castro, Rocio; Secchi, Eduardo Resende; Crespo, Enrique Alberto; Lailson Brito, José; et al.; Molecular and Morphological Differentiation of Common Dolphins (Delphinus sp.) in the Southwestern Atlantic: Testing the Two Species Hypothesis in Sympatry; Public Library of Science; Plos One; 10; 11; 11-2015; 1-15; e0140251 1932-6203 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0140251 info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0140251 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Public Library of Science |
publisher.none.fl_str_mv |
Public Library of Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613692765765632 |
score |
13.070432 |