The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species?
- Autores
- Taverna, Anabela Jesús; de Aranzamendi, Maria Carla; Maggioni, Tamara; Alurralde, Gastón; Turón, Xavier; Tatian, Marcos
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Taxonomic problems when dealing with morphologically similar marine taxa can hinder the correct assignment of the status of a species as native or introduced. This is the case of Asterocarpa humilis (Heller, 1878) considered native for the Southern Hemisphere. The species was originally described for New Zealand and later cited for Tasmania and South Africa. However, for Chile A. humilis was considered introduced, as well as for the Northern Hemisphere in Great Britain and France. For the SW Atlantic, another species with a similar morphology, Cnemidocarpa robinsoni Hartmeyer, 1918 has been reported as a cryptogenic species. The aim of this work was to define the entity and status of these species: Asterocarpa humilis and Cnemidocarpa robinsoni through molecular analyses. We sequenced a partial fragment of COI gene of seven samples of C. robinsoni collected at the Argentine Sea. A median joining haplotype network was constructed including the seven new sequences and four sequences of A. humilis from Chile, New Zealand and France mined from published databases. Four haplotypes with eight variable sites were obtained. The haplotype network shows a more frequent haplotype present in South America and France, suggesting that the Argentine specimens described as C. robinsoni and those from Chile and France as A. humilis, correspond to the same taxonomic entity. Phylogenetic trees reconstructed by Bayesian Inference, Maximum Likelihood and Maximum Parsimony, grouped A. humilis and C. robinsoni into one well-supported monophyletic clade. The scarce genetic difference among individuals from distant populations proves the existence of a unique specific identity. Thus, the name Asterocarpa humilis takes precedence over Cnemidocarpa robinsoni; the latter must be considered a junior synonym of the former. The presence of this species in natural habitats in addition to its register in old collections (1920) in the SW Atlantic, suggests that the species is native for this area.
Fil: Taverna, Anabela Jesús. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: de Aranzamendi, Maria Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: Maggioni, Tamara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: Alurralde, Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Fil: Turón, Xavier. Consejo Superior de Investigaciones Cientificas. Centro de Estudios Avanzados de Blanes.; España
Fil: Tatian, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina
Xth International Conference on Marine Bioinvasions
Puerto Madryn
Argentina
Society for the Study of Marine Bioinvasions - Materia
-
NATIVE SPECIES
EXOTIC SPECIES
ASCIDIANS
MOLECULAR ANALYSIS - 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:11336/267985
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The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species?Taverna, Anabela Jesúsde Aranzamendi, Maria CarlaMaggioni, TamaraAlurralde, GastónTurón, XavierTatian, MarcosNATIVE SPECIESEXOTIC SPECIESASCIDIANSMOLECULAR ANALYSIShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Taxonomic problems when dealing with morphologically similar marine taxa can hinder the correct assignment of the status of a species as native or introduced. This is the case of Asterocarpa humilis (Heller, 1878) considered native for the Southern Hemisphere. The species was originally described for New Zealand and later cited for Tasmania and South Africa. However, for Chile A. humilis was considered introduced, as well as for the Northern Hemisphere in Great Britain and France. For the SW Atlantic, another species with a similar morphology, Cnemidocarpa robinsoni Hartmeyer, 1918 has been reported as a cryptogenic species. The aim of this work was to define the entity and status of these species: Asterocarpa humilis and Cnemidocarpa robinsoni through molecular analyses. We sequenced a partial fragment of COI gene of seven samples of C. robinsoni collected at the Argentine Sea. A median joining haplotype network was constructed including the seven new sequences and four sequences of A. humilis from Chile, New Zealand and France mined from published databases. Four haplotypes with eight variable sites were obtained. The haplotype network shows a more frequent haplotype present in South America and France, suggesting that the Argentine specimens described as C. robinsoni and those from Chile and France as A. humilis, correspond to the same taxonomic entity. Phylogenetic trees reconstructed by Bayesian Inference, Maximum Likelihood and Maximum Parsimony, grouped A. humilis and C. robinsoni into one well-supported monophyletic clade. The scarce genetic difference among individuals from distant populations proves the existence of a unique specific identity. Thus, the name Asterocarpa humilis takes precedence over Cnemidocarpa robinsoni; the latter must be considered a junior synonym of the former. The presence of this species in natural habitats in addition to its register in old collections (1920) in the SW Atlantic, suggests that the species is native for this area.Fil: Taverna, Anabela Jesús. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: de Aranzamendi, Maria Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Maggioni, Tamara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Alurralde, Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Turón, Xavier. Consejo Superior de Investigaciones Cientificas. Centro de Estudios Avanzados de Blanes.; EspañaFil: Tatian, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaXth International Conference on Marine BioinvasionsPuerto MadrynArgentinaSociety for the Study of Marine BioinvasionsSociety for the Study of Marine Bioinvasions2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectConferenciaBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfhttp://hdl.handle.net/11336/267985The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species?; Xth International Conference on Marine Bioinvasions; Puerto Madryn; Argentina; 2018; 165-165CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://marinebioinvasions.info/user/pages/60.archives/ICMB-X.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:12Zoai:ri.conicet.gov.ar:11336/267985instacron: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 09:47:12.871CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? |
title |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? |
spellingShingle |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? Taverna, Anabela Jesús NATIVE SPECIES EXOTIC SPECIES ASCIDIANS MOLECULAR ANALYSIS |
title_short |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? |
title_full |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? |
title_fullStr |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? |
title_full_unstemmed |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? |
title_sort |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species? |
dc.creator.none.fl_str_mv |
Taverna, Anabela Jesús de Aranzamendi, Maria Carla Maggioni, Tamara Alurralde, Gastón Turón, Xavier Tatian, Marcos |
author |
Taverna, Anabela Jesús |
author_facet |
Taverna, Anabela Jesús de Aranzamendi, Maria Carla Maggioni, Tamara Alurralde, Gastón Turón, Xavier Tatian, Marcos |
author_role |
author |
author2 |
de Aranzamendi, Maria Carla Maggioni, Tamara Alurralde, Gastón Turón, Xavier Tatian, Marcos |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
NATIVE SPECIES EXOTIC SPECIES ASCIDIANS MOLECULAR ANALYSIS |
topic |
NATIVE SPECIES EXOTIC SPECIES ASCIDIANS MOLECULAR ANALYSIS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Taxonomic problems when dealing with morphologically similar marine taxa can hinder the correct assignment of the status of a species as native or introduced. This is the case of Asterocarpa humilis (Heller, 1878) considered native for the Southern Hemisphere. The species was originally described for New Zealand and later cited for Tasmania and South Africa. However, for Chile A. humilis was considered introduced, as well as for the Northern Hemisphere in Great Britain and France. For the SW Atlantic, another species with a similar morphology, Cnemidocarpa robinsoni Hartmeyer, 1918 has been reported as a cryptogenic species. The aim of this work was to define the entity and status of these species: Asterocarpa humilis and Cnemidocarpa robinsoni through molecular analyses. We sequenced a partial fragment of COI gene of seven samples of C. robinsoni collected at the Argentine Sea. A median joining haplotype network was constructed including the seven new sequences and four sequences of A. humilis from Chile, New Zealand and France mined from published databases. Four haplotypes with eight variable sites were obtained. The haplotype network shows a more frequent haplotype present in South America and France, suggesting that the Argentine specimens described as C. robinsoni and those from Chile and France as A. humilis, correspond to the same taxonomic entity. Phylogenetic trees reconstructed by Bayesian Inference, Maximum Likelihood and Maximum Parsimony, grouped A. humilis and C. robinsoni into one well-supported monophyletic clade. The scarce genetic difference among individuals from distant populations proves the existence of a unique specific identity. Thus, the name Asterocarpa humilis takes precedence over Cnemidocarpa robinsoni; the latter must be considered a junior synonym of the former. The presence of this species in natural habitats in addition to its register in old collections (1920) in the SW Atlantic, suggests that the species is native for this area. Fil: Taverna, Anabela Jesús. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina Fil: de Aranzamendi, Maria Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina Fil: Maggioni, Tamara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina Fil: Alurralde, Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina Fil: Turón, Xavier. Consejo Superior de Investigaciones Cientificas. Centro de Estudios Avanzados de Blanes.; España Fil: Tatian, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina Xth International Conference on Marine Bioinvasions Puerto Madryn Argentina Society for the Study of Marine Bioinvasions |
description |
Taxonomic problems when dealing with morphologically similar marine taxa can hinder the correct assignment of the status of a species as native or introduced. This is the case of Asterocarpa humilis (Heller, 1878) considered native for the Southern Hemisphere. The species was originally described for New Zealand and later cited for Tasmania and South Africa. However, for Chile A. humilis was considered introduced, as well as for the Northern Hemisphere in Great Britain and France. For the SW Atlantic, another species with a similar morphology, Cnemidocarpa robinsoni Hartmeyer, 1918 has been reported as a cryptogenic species. The aim of this work was to define the entity and status of these species: Asterocarpa humilis and Cnemidocarpa robinsoni through molecular analyses. We sequenced a partial fragment of COI gene of seven samples of C. robinsoni collected at the Argentine Sea. A median joining haplotype network was constructed including the seven new sequences and four sequences of A. humilis from Chile, New Zealand and France mined from published databases. Four haplotypes with eight variable sites were obtained. The haplotype network shows a more frequent haplotype present in South America and France, suggesting that the Argentine specimens described as C. robinsoni and those from Chile and France as A. humilis, correspond to the same taxonomic entity. Phylogenetic trees reconstructed by Bayesian Inference, Maximum Likelihood and Maximum Parsimony, grouped A. humilis and C. robinsoni into one well-supported monophyletic clade. The scarce genetic difference among individuals from distant populations proves the existence of a unique specific identity. Thus, the name Asterocarpa humilis takes precedence over Cnemidocarpa robinsoni; the latter must be considered a junior synonym of the former. The presence of this species in natural habitats in addition to its register in old collections (1920) in the SW Atlantic, suggests that the species is native for this area. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Conferencia Book http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
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publishedVersion |
format |
conferenceObject |
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http://hdl.handle.net/11336/267985 The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species?; Xth International Conference on Marine Bioinvasions; Puerto Madryn; Argentina; 2018; 165-165 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/267985 |
identifier_str_mv |
The ascidian Asterocarpa humilis (Heller, 1878) in the South Western Atlantic: A native or introduced species?; Xth International Conference on Marine Bioinvasions; Puerto Madryn; Argentina; 2018; 165-165 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://marinebioinvasions.info/user/pages/60.archives/ICMB-X.pdf |
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Internacional |
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Society for the Study of Marine Bioinvasions |
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Society for the Study of Marine Bioinvasions |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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