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Genetic structure in the blue and red shrimp Aristeus antennatus and the role played by hydrographical and oceanographical barriers

The blue and red shrimp Aristeus antenantus supports an important commercial fishery in the Western Mediterranean, adjacent Atlantic waters and Mozambique Channel (western Indian Ocean). This study investigates its genetic structure by examining a total of 506 individuals from Mediterranean, Atlantic and Indian Ocean locations. In order to identify putative genetic stocks, sequences from 16S rDNA (546 bp) and COI (514 bp) genes were used. Genetic diversity, estimated by haplotypic and nucleotidic diversity, was lower in the Western Mediterranean than in samples from other locations. The high haplotypic diversity of the Eastern Mediterranean, Atlantic and Indian Ocean samples reflects the occurrence of a number of private haplotypes, which are also responsible for significant genetic divergence between these samples and the Western Mediterranean ones. The analysis of mismatch distributions, neutrality tests, and star-like patterns present in the network of haplotypes provided consistent inference of past population expansion in the Western Mediterranean, Atlantic and Mozambique Channel regions. Our study provides the first evidence of genetic structuring in A. antennatus across its distributional range

The authors thank M. Arculeo, A. Carbonell, M. Cortey, L. Hidalgo, C.- Y. Politou, I. Sobrino and A. Souplet for their help in sample collection; and C. Martinez and R. Patellani for their assistance in the laboratory. This work was supported by grants to M.I.R. by the Spanish Ministerio de Educación y Ciencia (CTM2006-00785) and Ministerio de Ciencia e Innovación (AGL2009-09228). M.V.F. benefited from a predoctoral fellowship from the Ministerio de Educación y Ciencia (BES-2007-15865)

info:eu-repo/grantAgreement/MICINN//AGL2009-09228/ES/Gambas Rojas: Filogeografia, Identificacion Genetica De Los Estocs Pesqueros Mediante Analisis De Adn E Implicancias Para Su Gestion./

Inter Research

Director: Ministerio de Educación y Ciencia (Espanya)
Ministerio de Ciencia e Innovación (Espanya)
Autor: Fernández Hernández, Maria Victoria
Heras Mena, Sandra
Maltagliati, Ferruccio
Turco, Aldo
Roldán Borassi, María Inés
Data: 26 gener 2011
Resum: The blue and red shrimp Aristeus antenantus supports an important commercial fishery in the Western Mediterranean, adjacent Atlantic waters and Mozambique Channel (western Indian Ocean). This study investigates its genetic structure by examining a total of 506 individuals from Mediterranean, Atlantic and Indian Ocean locations. In order to identify putative genetic stocks, sequences from 16S rDNA (546 bp) and COI (514 bp) genes were used. Genetic diversity, estimated by haplotypic and nucleotidic diversity, was lower in the Western Mediterranean than in samples from other locations. The high haplotypic diversity of the Eastern Mediterranean, Atlantic and Indian Ocean samples reflects the occurrence of a number of private haplotypes, which are also responsible for significant genetic divergence between these samples and the Western Mediterranean ones. The analysis of mismatch distributions, neutrality tests, and star-like patterns present in the network of haplotypes provided consistent inference of past population expansion in the Western Mediterranean, Atlantic and Mozambique Channel regions. Our study provides the first evidence of genetic structuring in A. antennatus across its distributional range
The authors thank M. Arculeo, A. Carbonell, M. Cortey, L. Hidalgo, C.- Y. Politou, I. Sobrino and A. Souplet for their help in sample collection; and C. Martinez and R. Patellani for their assistance in the laboratory. This work was supported by grants to M.I.R. by the Spanish Ministerio de Educación y Ciencia (CTM2006-00785) and Ministerio de Ciencia e Innovación (AGL2009-09228). M.V.F. benefited from a predoctoral fellowship from the Ministerio de Educación y Ciencia (BES-2007-15865)
Format: application/pdf
Accés al document: http://hdl.handle.net/10256/12036
Llenguatge: eng
Editor: Inter Research
Col·lecció: info:eu-repo/semantics/altIdentifier/doi/10.3354/meps08881
info:eu-repo/semantics/altIdentifier/issn/0171-8630
info:eu-repo/semantics/altIdentifier/eissn/1616-1599
info:eu-repo/grantAgreement/MEC//CTM2006-00785/ES/GAMBAS DE AGUAS PROFUNDAS DEL MAR MEDITERRANEO: IDENTIFICACION GENETICA DE LAS POBLACIONES MEDIANTE ANALISIS DE ADN E IMPLICANCIA PARA LA GESTION DE LAS PESQUERIAS./
És part de: info:eu-repo/grantAgreement/MICINN//AGL2009-09228/ES/Gambas Rojas: Filogeografia, Identificacion Genetica De Los Estocs Pesqueros Mediante Analisis De Adn E Implicancias Para Su Gestion./
Drets: Tots els drets reservats
Matèria: Gambes -- Genètica -- Mediterrània, Mar
Shrimps -- Genetics -- Mediterranean Sea
ADN mitocondrial -- Mediterrània, Mar
Mitochondrial DNA -- Mediterranean Sea
Títol: Genetic structure in the blue and red shrimp Aristeus antennatus and the role played by hydrographical and oceanographical barriers
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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