English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/217276
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Individual‑based population genomics reveal diferent drivers of adaptation in sympatric fish

AuthorsTorrado, Héctor ; Carreras, Carlos ; Raventós, Núria ; Macpherson, Enrique ; Pascual, Marta
Issue Date2020
PublisherNature Publishing Group
CitationScientific Reports 10 :12683 (2020)
AbstractConnectivity and local adaptation are two contrasting evolutionary forces highly infuencing population structure. To evaluate the impact of early-life traits and environmental conditions on genetic structuring and adaptation, we studied two sympatric fsh species in the Western Mediterranean Sea: Symphodus tinca and S. ocellatus. We followed an individual-based approach and measured early-life history traits from otolith readings, gathered information on environmental variables and obtained genome-wide markers from genotyping-by-sequencing (GBS). The two species presented contrasting population structure across the same geographic gradient, with high and signifcant population diferentiation in S. ocellatus, mostly determined by oceanographic fronts, and low diferentiation and no front efect in S. tinca. Despite their diferent levels of genetic diferentiation, we identifed in both species candidate regions for local adaptation by combining outlier analysis with environmental and phenotypic association analyses. Most candidate loci were associated to temperature and productivity in S. ocellatus and to temperature and turbulence in S. tinca suggesting that diferent drivers may determine genomic diversity and diferentiation in each species. Globally, our study highlights that individual-based approach combining genomic, environmental and phenotypic information is key to identify signals of selection and the processes mediating them.
DescriptionEste artículo contiene 14 páginas, 6 figuras, 2 tablas.
Publisher version (URL)https://doi.org/10.1038/s41598-020-69160-2
Appears in Collections:(CEAB) Artículos
Files in This Item:
File Description SizeFormat 
Torrado 2020.pdf2,78 MBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.