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
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/106941

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network_name_str SEDICI (UNLP)
spelling 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
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/106941
url http://sedici.unlp.edu.ar/handle/10915/106941
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/issn/1932-6203
info:eu-repo/semantics/altIdentifier/pmid/30102742
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0202024
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
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Creative Commons Attribution 4.0 International (CC BY 4.0)
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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