Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences

Genetic differentiation and species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus was investigated using mtDNA D-loop partial sequences (541 bp). Sequences were obtained for 47 individuals from seven locations off the Pacific and Atlantic coasts of Sou...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Nuñez,José J, González,M. Teresa, Pérez-Losada,Marcos
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2010
Materias:	Southern hemisphere rockfishes mtDNA speciation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572010000400005
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-19572010000400005
record_format	dspace
spelling	oai:scielo:S0718-195720100004000052011-04-28Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequencesNuñez,José JGonzález,M. TeresaPérez-Losada,Marcos Southern hemisphere rockfishes mtDNA speciation Genetic differentiation and species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus was investigated using mtDNA D-loop partial sequences (541 bp). Sequences were obtained for 47 individuals from seven locations off the Pacific and Atlantic coasts of South America (S. oculatus) and one off the coast of South Africa (S. capensis), and for two specimens of Helicolenus lengerichi (outgroup). These data were then combined with sequences from GenBank corresponding to 21 Sebastes species. Maximum likelihood and Bayesian phylogenetic approaches showed topological distinctiveness between South American and South African Sebastes populations, supporting the existence of two phylogenetic species: S. oculatus and S. capensis. However, Atlantic and Pacific populations of S. oculatus, did not form reciprocal monophyletic assemblages. Application of the Wiens & Penkrots protocol to test species boundaries within this species did not support the existence of two different phylogenetic taxa. Gene flow between Atlantic and Pacific populations of S. oculatus could be explained by extensive larval dispersal, favored by both the Humboldt current and the West Wind Drift current along the South American coast.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.45 suppl.1 20102010-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572010000400005en10.4067/S0718-19572010000400005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Southern hemisphere rockfishes mtDNA speciation
spellingShingle	Southern hemisphere rockfishes mtDNA speciation Nuñez,José J González,M. Teresa Pérez-Losada,Marcos Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences
description	Genetic differentiation and species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus was investigated using mtDNA D-loop partial sequences (541 bp). Sequences were obtained for 47 individuals from seven locations off the Pacific and Atlantic coasts of South America (S. oculatus) and one off the coast of South Africa (S. capensis), and for two specimens of Helicolenus lengerichi (outgroup). These data were then combined with sequences from GenBank corresponding to 21 Sebastes species. Maximum likelihood and Bayesian phylogenetic approaches showed topological distinctiveness between South American and South African Sebastes populations, supporting the existence of two phylogenetic species: S. oculatus and S. capensis. However, Atlantic and Pacific populations of S. oculatus, did not form reciprocal monophyletic assemblages. Application of the Wiens & Penkrots protocol to test species boundaries within this species did not support the existence of two different phylogenetic taxa. Gene flow between Atlantic and Pacific populations of S. oculatus could be explained by extensive larval dispersal, favored by both the Humboldt current and the West Wind Drift current along the South American coast.
author	Nuñez,José J González,M. Teresa Pérez-Losada,Marcos
author_facet	Nuñez,José J González,M. Teresa Pérez-Losada,Marcos
author_sort	Nuñez,José J
title	Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences
title_short	Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences
title_full	Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences
title_fullStr	Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences
title_full_unstemmed	Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences
title_sort	testing species boundaries between atlantic and pacific lineages of the patagonian rockfish sebastes oculatus (teleostei: scorpaenidae) through mitochondrial dna sequences
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572010000400005
work_keys_str_mv	AT nunezjosej testingspeciesboundariesbetweenatlanticandpacificlineagesofthepatagonianrockfishsebastesoculatusteleosteiscorpaenidaethroughmitochondrialdnasequences AT gonzalezmteresa testingspeciesboundariesbetweenatlanticandpacificlineagesofthepatagonianrockfishsebastesoculatusteleosteiscorpaenidaethroughmitochondrialdnasequences AT perezlosadamarcos testingspeciesboundariesbetweenatlanticandpacificlineagesofthepatagonianrockfishsebastesoculatusteleosteiscorpaenidaethroughmitochondrialdnasequences
_version_	1714202302530715648

Testing species boundaries between Atlantic and Pacific lineages of the Patagonian rockfish Sebastes oculatus (Teleostei: Scorpaenidae) through mitochondrial DNA sequences

Ejemplares similares