A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias
- Autores
- Cardoso, Yamila Paula; Rosso, Juan José; Mabragaña, Ezequiel; González Castro, Mariano; Delpiani, Matías; Avigliano, Esteban; Bogan, Sergio; Covain, Raphael; Schenone, Nahuel F.; Díaz de Astarloa, Juan M.
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- With an estimate of around 9,000 species, the Neotropical region hosts the greatest diversity of freshwater fishes of the world. Genetic surveys have the potential to unravel isolated and unique lineages and may result in the identification of undescribed species, accelerating the cataloguing of extant biodiversity. In this paper, molecular diversity within the valuable and widespread Neotropical genus Hoplias was assessed by means of DNA Barcoding. The geographic coverage spanned 40 degrees of latitude from French Guiana to Argentina. Our analyses revealed 22 mitochondrial lineages fully supported by means of Barcode Index Number, Automatic Barcode Gap Discovery and phylogenetic analyses. This mtDNA survey revealed the existence of 15 fully supported mitochondrial lineages within the once considered to be the continentally distributed H. malabaricus. Only four of them are currently described as valid species however, leaving 11 mitochondrial lineages currently “masked” within this species complex. Mean genetic divergence was 13.1%. Barcoding gap analysis discriminated 20 out of the 22 lineages tested. Phylogenetic analyses showed that all taxonomically recognized species form monophyletic groups. Hoplias malabaricus sensu stricto clustered within a large clade, excluding the representatives of the La Plata River Basin. In the H. lacerdae group, all species but H. curupira showed a cohesive match between taxonomic and molecular identification. Two different genetic lineages were recovered for H. aimara. Given the unexpected hidden mitochondrial diversity within H. malabaricus, the COI sequence composition of specimens from Suriname (the type locality), identified as H. malabaricus sensu stricto, is of major importance.
Facultad de Ciencias Naturales y Museo - Materia
-
Biología
Taxonomy
Mitochondria
Genetics
Phylogenetic analysis
Rivers
DNA barcoding
Phylogeography
Freshwater fish - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/106941
Ver los metadatos del registro completo
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A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus HopliasCardoso, Yamila PaulaRosso, Juan JoséMabragaña, EzequielGonzález Castro, MarianoDelpiani, MatíasAvigliano, EstebanBogan, SergioCovain, RaphaelSchenone, Nahuel F.Díaz de Astarloa, Juan M.BiologíaTaxonomyMitochondriaGeneticsPhylogenetic analysisRiversDNA barcodingPhylogeographyFreshwater fishWith an estimate of around 9,000 species, the Neotropical region hosts the greatest diversity of freshwater fishes of the world. Genetic surveys have the potential to unravel isolated and unique lineages and may result in the identification of undescribed species, accelerating the cataloguing of extant biodiversity. In this paper, molecular diversity within the valuable and widespread Neotropical genus Hoplias was assessed by means of DNA Barcoding. The geographic coverage spanned 40 degrees of latitude from French Guiana to Argentina. Our analyses revealed 22 mitochondrial lineages fully supported by means of Barcode Index Number, Automatic Barcode Gap Discovery and phylogenetic analyses. This mtDNA survey revealed the existence of 15 fully supported mitochondrial lineages within the once considered to be the continentally distributed H. malabaricus. Only four of them are currently described as valid species however, leaving 11 mitochondrial lineages currently “masked” within this species complex. Mean genetic divergence was 13.1%. Barcoding gap analysis discriminated 20 out of the 22 lineages tested. Phylogenetic analyses showed that all taxonomically recognized species form monophyletic groups. Hoplias malabaricus sensu stricto clustered within a large clade, excluding the representatives of the La Plata River Basin. In the H. lacerdae group, all species but H. curupira showed a cohesive match between taxonomic and molecular identification. Two different genetic lineages were recovered for H. aimara. Given the unexpected hidden mitochondrial diversity within H. malabaricus, the COI sequence composition of specimens from Suriname (the type locality), identified as H. malabaricus sensu stricto, is of major importance.Facultad de Ciencias Naturales y Museo2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/106941enginfo:eu-repo/semantics/altIdentifier/url/http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6089427&blobtype=pdfinfo:eu-repo/semantics/altIdentifier/issn/1932-6203info:eu-repo/semantics/altIdentifier/pmid/30102742info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0202024info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:23:52Zoai:sedici.unlp.edu.ar:10915/106941Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:23:53.072SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias |
title |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias |
spellingShingle |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias Cardoso, Yamila Paula Biología Taxonomy Mitochondria Genetics Phylogenetic analysis Rivers DNA barcoding Phylogeography Freshwater fish |
title_short |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias |
title_full |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias |
title_fullStr |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias |
title_full_unstemmed |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias |
title_sort |
A continental-wide molecular approach unraveling mtDNA diversity and geographic distribution of the Neotropical genus Hoplias |
dc.creator.none.fl_str_mv |
Cardoso, Yamila Paula Rosso, Juan José Mabragaña, Ezequiel González Castro, Mariano Delpiani, Matías Avigliano, Esteban Bogan, Sergio Covain, Raphael Schenone, Nahuel F. Díaz de Astarloa, Juan M. |
author |
Cardoso, Yamila Paula |
author_facet |
Cardoso, Yamila Paula Rosso, Juan José Mabragaña, Ezequiel González Castro, Mariano Delpiani, Matías Avigliano, Esteban Bogan, Sergio Covain, Raphael Schenone, Nahuel F. Díaz de Astarloa, Juan M. |
author_role |
author |
author2 |
Rosso, Juan José Mabragaña, Ezequiel González Castro, Mariano Delpiani, Matías Avigliano, Esteban Bogan, Sergio Covain, Raphael Schenone, Nahuel F. Díaz de Astarloa, Juan M. |
author2_role |
author author author author author author author author author |
dc.subject.none.fl_str_mv |
Biología Taxonomy Mitochondria Genetics Phylogenetic analysis Rivers DNA barcoding Phylogeography Freshwater fish |
topic |
Biología Taxonomy Mitochondria Genetics Phylogenetic analysis Rivers DNA barcoding Phylogeography Freshwater fish |
dc.description.none.fl_txt_mv |
With an estimate of around 9,000 species, the Neotropical region hosts the greatest diversity of freshwater fishes of the world. Genetic surveys have the potential to unravel isolated and unique lineages and may result in the identification of undescribed species, accelerating the cataloguing of extant biodiversity. In this paper, molecular diversity within the valuable and widespread Neotropical genus Hoplias was assessed by means of DNA Barcoding. The geographic coverage spanned 40 degrees of latitude from French Guiana to Argentina. Our analyses revealed 22 mitochondrial lineages fully supported by means of Barcode Index Number, Automatic Barcode Gap Discovery and phylogenetic analyses. This mtDNA survey revealed the existence of 15 fully supported mitochondrial lineages within the once considered to be the continentally distributed H. malabaricus. Only four of them are currently described as valid species however, leaving 11 mitochondrial lineages currently “masked” within this species complex. Mean genetic divergence was 13.1%. Barcoding gap analysis discriminated 20 out of the 22 lineages tested. Phylogenetic analyses showed that all taxonomically recognized species form monophyletic groups. Hoplias malabaricus sensu stricto clustered within a large clade, excluding the representatives of the La Plata River Basin. In the H. lacerdae group, all species but H. curupira showed a cohesive match between taxonomic and molecular identification. Two different genetic lineages were recovered for H. aimara. Given the unexpected hidden mitochondrial diversity within H. malabaricus, the COI sequence composition of specimens from Suriname (the type locality), identified as H. malabaricus sensu stricto, is of major importance. Facultad de Ciencias Naturales y Museo |
description |
With an estimate of around 9,000 species, the Neotropical region hosts the greatest diversity of freshwater fishes of the world. Genetic surveys have the potential to unravel isolated and unique lineages and may result in the identification of undescribed species, accelerating the cataloguing of extant biodiversity. In this paper, molecular diversity within the valuable and widespread Neotropical genus Hoplias was assessed by means of DNA Barcoding. The geographic coverage spanned 40 degrees of latitude from French Guiana to Argentina. Our analyses revealed 22 mitochondrial lineages fully supported by means of Barcode Index Number, Automatic Barcode Gap Discovery and phylogenetic analyses. This mtDNA survey revealed the existence of 15 fully supported mitochondrial lineages within the once considered to be the continentally distributed H. malabaricus. Only four of them are currently described as valid species however, leaving 11 mitochondrial lineages currently “masked” within this species complex. Mean genetic divergence was 13.1%. Barcoding gap analysis discriminated 20 out of the 22 lineages tested. Phylogenetic analyses showed that all taxonomically recognized species form monophyletic groups. Hoplias malabaricus sensu stricto clustered within a large clade, excluding the representatives of the La Plata River Basin. In the H. lacerdae group, all species but H. curupira showed a cohesive match between taxonomic and molecular identification. Two different genetic lineages were recovered for H. aimara. Given the unexpected hidden mitochondrial diversity within H. malabaricus, the COI sequence composition of specimens from Suriname (the type locality), identified as H. malabaricus sensu stricto, is of major importance. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/106941 |
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http://sedici.unlp.edu.ar/handle/10915/106941 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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