Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/345226
COMPARTIR / EXPORTAR:
SHARE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Population Genomics Reveals the Underlying Structure of the Small Pelagic European Sardine and Suggests Low Connectivity within Macaronesia |
Autor: | da Fonseca, Rute R.; Campos, Paula F.; Rey-Iglesia, Alba; Barroso, Gustavo V.; Bergeron, Lucie A.; Nande, Manuel; Tuya, Fernando; Abidli, Sami; Pérez, Montse; Riveiro, Isabel; Carrera, Pablo; Jurado-Ruzafa, Alba CSIC ORCID; G. Santamaría, M. Teresa; Faria, Rui; Machado, André M.; Fonseca, Miguel M.; Froufe, Elsa; C. Castro, L. Filipe | Fecha de publicación: | 27-ene-2024 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Genes 15 (2): 170 (2024) | Resumen: | The European sardine (<i>Sardina pilchardus</i>, Walbaum 1792) is indisputably a commercially important species. Previous studies using uneven sampling or a limited number of makers have presented sometimes conflicting evidence of the genetic structure of <i>S. pilchardus</i> populations. Here, we show that whole genome data from 108 individuals from 16 sampling areas across 5000 km of the species’ distribution range (from the Eastern Mediterranean to the archipelago of Azores) support at least three genetic clusters. One includes individuals from Azores and Madeira, with evidence of substructure separating these two archipelagos in the Atlantic. Another cluster broadly corresponds to the center of the distribution, including the sampling sites around Iberia, separated by the Almeria–Oran front from the third cluster that includes all of the Mediterranean samples, except those from the Alboran Sea. Individuals from the Canary Islands appear to belong to the Mediterranean cluster. This suggests at least two important geographical barriers to gene flow, even though these do not seem complete, with many individuals from around Iberia and the Mediterranean showing some patterns compatible with admixture with other genetic clusters. Genomic regions corresponding to the top outliers of genetic differentiation are located in areas of low recombination indicative that genetic architecture also has a role in shaping population structure. These regions include genes related to otolith formation, a calcium carbonate structure in the inner ear previously used to distinguish <i>S. pilchardus</i> populations. Our results provide a baseline for further characterization of physical and genetic barriers that divide European sardine populations, and information for transnational stock management of this highly exploited species towards sustainable fisheries. | URI: | http://hdl.handle.net/10261/345226 | Identificadores: | doi: 10.3390/genes15020170 |
Aparece en las colecciones: | Colección MDPI |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
genes-15-00170-v3.pdf | 2,74 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.