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dc.contributor.authorPérez-Portela, Rocío
dc.contributor.authorWangensteen Fuentes, Owen Simon
dc.contributor.authorGarcía-Cisneros, Alex
dc.contributor.authorValero-Jiménez, Claudio
dc.contributor.authorPalacín, Creu
dc.contributor.authorTuron, Xavier
dc.date.accessioned2019-02-06T12:50:36Z
dc.date.available2019-02-06T12:50:36Z
dc.date.issued2018-06-14
dc.description.abstractThe genetic structure of 13 populations of the amphiatlantic sea urchin <i>Arbacia lixula</i>, as well as temporal genetic changes in three of these localities, were assessed using ten hypervariable microsatellite loci. This thermophilous sea urchin is an important engineer species triggering the formation of barren grounds through its grazing activity. Its abundance seems to be increasing in most parts of the Mediterranean, probably favoured by warming conditions. Significant genetic differentiation was found both spatially and temporally. The main break corresponded to the separation of western Atlantic populations from those in eastern Atlantic and the Mediterranean Sea. A less marked, but significant differentiation was also found between Macaronesia (eastern Atlantic) and the Mediterranean. In the latter area, a signal of differentiation between the transitional area (Alboran Sea) and the rest of the Mediterranean was detected. However, no genetic structure is found within the Mediterranean (excluding Alboran) across the Siculo-Tunisian Strait, resulting from either enough gene flow to homogenize distance areas or/and a recent evolutionary history marked by demographic expansion in this basin. Genetic temporal variation at the Alboran Sea is as important as spatial variation, suggesting that temporal changes in hydrological features can affect the genetic composition of the populations. A picture of genetic homogeneity in the Mediterranean emerges, implying that the potential expansion of this keystone species will not be limited by intraspecific genetic features and/or potential impact of postulated barriers to gene flow in the region.en_US
dc.description.sponsorshipThe Spanish Government projectsen_US
dc.descriptionSubmitted manuscript version. Published version available at <a href=https://doi.org/10.1038/s41437-018-0098-6> https://doi.org/10.1038/s41437-018-0098-6</a>.en_US
dc.identifier.citationPérez-Portela, R., Wangensteen Fuentes, O.S., García-Cisneros, A., Valero-Jiménez, C., Palacín, C. & Turon, X. (2018). Spatio-temporal patterns of genetic variation in <i>Arbacia lixula</i>, a thermophilous sea urchin in expansion in the Mediterranean. <i>Heredity, 122</i>, 244-259. https://doi.org/10.1038/s41437-018-0098-6en_US
dc.identifier.cristinIDFRIDAID 1592394
dc.identifier.doi10.1038/s41437-018-0098-6
dc.identifier.issn0018-067X
dc.identifier.issn1365-2540
dc.identifier.urihttps://hdl.handle.net/10037/14632
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalHeredity
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920en_US
dc.titleSpatio-temporal patterns of genetic variation in Arbacia lixula, a thermophilous sea urchin in expansion in the Mediterraneanen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US


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