Data from: Exploring neutral and adaptive processes in expanding populations of gilthead sea bream, Sparus aurata L., in the North-East Atlantic ...

• Main Authors: Mariani, Stefano, Coscia, Ilaria, Vogiatzi, Emmanouella, Kotoulas, Georgios, Tsigenopoulos, Costas S.
• Format: Dataset
• Language: English
• Published: Dryad 2011
• Subjects: Sparus aurata; North East Atlantic
• Online Access: https://dx.doi.org/10.5061/dryad.n722g4d3; https://datadryad.org/stash/dataset/doi:10.5061/dryad.n722g4d3

Recent studies in empirical population genetics have highlighted the importance of taking into account both neutral and adaptive genetic variation in characterizing microevolutionary dynamics. Here we explore the genetic population structure and the footprints of selection in four populations of the warm-temperate coastal fish, the gilthead sea bream (Sparus aurata), whose recent northward expansion has been linked to climate change. Samples were collected at four Atlantic locations, including Spain, Portugal, France and the South of Ireland, and genetically assayed using a suite of species-specific markers, including 15 putatively neutral microsatellites and 23 Expressed Sequence Tag-linked (ESTs) markers, as well as a portion of the mitochondrial DNA (mtDNA) Control Region. Two of the putatively neutral markers, Bld-10 and Ad-10, bore signatures of strong directional selection, particularly in the newly established Irish population, though the potential 'surfing effect' of rare alleles at the edge of the ... : Saurata_Alleles_DryadMicrosatellites' alleles ...