Título

Role of oceanography in shaping the genetic structure in the North Pacific hake Merluccius productus

Autor

FRANCISCO JAVIER GARCIA DE LEON

CAROLINA GALVAN TIRADO

LAURA SANCHEZ VELASCO

CLAUDIA ALICIA SILVA SEGUNDO

Rafael Hernández Guzmán

Irene de los Ángeles Barriga Sosa

PINDARO DIAZ JAIMES

Michael Canino

Pedro Cruz Hernández

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Referencia de publicación

URL/URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0194646

doi: DOI: 10.1371/ journal.pone.0194646

ISSN/ISSN: 19326203

Materias

Merluccius productus, genética - (AUTOR) BIOLOGÍA Y QUÍMICA - (CTI) CIENCIAS DE LA VIDA - (CTI) GENÉTICA - (CTI) GENÉTICA DE POBLACIONES - (CTI) GENÉTICA DE POBLACIONES - (CTI)

Resumen o descripción

"Determining the relative influence of biotic and abiotic factors on genetic connectivity among populations remains a major challenge in evolutionary biology and in the management and conservation of species. North Pacific hake (Merluccius productus) inhabits upwelling regions in the California Current ecosystem from the Gulf of California to the Gulf of Alaska. In this study, we examined mitochondrial DNA (mtDNA) and microsatellite variation to estimate levels of genetic differentiation of M. productus in relation to the role of oceanographic features as potential barriers to gene flow. Samples were obtained from nine sites spanning a large part of the geographic range of the species, from Puget Sound, Washington to Costa Rica. The microsatellite results revealed three genetically discrete populations: one spanning the eastern Pacific coast, and two apparently resident populations circumscribed to the Puget Sound and the northern Gulf of California (FST = 0.032, p = 0.036). Cytochrome b sequence data indicated that isolation between the Puget Sound and northern Gulf of California populations from the coastal Pacific were recent phenomena (18.5 kyr for Puget Sound and 40 kyr for the northern Gulf of California). Oceanographic data obtained from the Gulf of California support the hypothesis that permanent fronts within the region, and strong gradients at the entrance to the Gulf of California act as barriers to gene flow. A seascape genetics approach found significant genetic–environment associations, where the daytime sea surface temperature and chlorophyll concentrations were the best predictive variables for the observed genetic differentiation. Considering the potential causes of genetic isolation among the three populations, e.g. spawning areas in different latitudes associated with upwelling processes, oceanographic barriers, asymmetric migration and specialized diet, oceanographic barriers appear to be a likely mechanism restricting gene flow."

Editor

Public Library of Science

Fecha de publicación

2018

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1684

Formato

application/vnd.openxmlformats-officedocument.wordprocessingml.document

Fuente

PLoS ONE

Idioma

Inglés

Sugerencia de citación

García-De León FJ, Galván-Tirado C, Sánchez Velasco L, Silva-Segundo CA, Hernández- Guzmán R, Barriga-Sosa IdlA, et al. (2018) Role of oceanography in shaping the genetic structure in the North Pacific hake Merluccius productus. PLoS ONE 13(3): e0194646.

Repositorio Orígen

Repositorio Institucional CIBNOR

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