biostudies-literatureKurland SScience for Life LaboratoryVetenskapsrådetSvenska Forskningsrådet FormasCarl Tryggers Stiftelse för Vetenskaplig ForskningKnut och Alice Wallenbergs Stiftelsee9050https://www.ebi.ac.uk/biostudies/studies/S-EPMC9251865biostudies-literatureUnknown12(7)Population translocations occur for a variety of reasons, from displacement due to climate change to human-induced transfers. Such actions have adverse effects on genetic variation and understanding their microevolutionary consequences requires monitoring. Here, we return to an experimental release of brown trout (<i>Salmo trutta</i>) in order to monitor the genomic effects of population translocations. In 1979, fish from each of two genetically (<i>F</i> _ST = 0.16) and ecologically separate populations were simultaneously released, at one point in time, to a lake system previously void of brown trout. Here, whole-genome sequencing of pooled DNA (Pool-seq) is used to characterize diversity within and divergence between the introduced populations and fish inhabiting two lakes dowEcology and evolutionGenomic dynamics of brown trout populations released to a novel environment.PMC92518652019‐055032014.02782018‐059732020‐01290Kurland SRafati NRyman NLaikre LfalseGenomic dynamics of brown trout populations released to a novel environment.Population translocations occur for a variety of reasons, from displacement due to climate change to human-induced transfers. Such actions have adverse effects on genetic variation and understanding their microevolutionary consequences requires monitoring. Here, we return to an experimental release of brown trout (<i>Salmo trutta</i>) in order to monitor the genomic effects of population translocations. In 1979, fish from each of two genetically (<i>F</i> _ST = 0.16) and ecologically separate populations were simultaneously released, at one point in time, to a lake system previously void of brown trout. Here, whole-genome sequencing of pooled DNA (Pool-seq) is used to characterize diversity within and divergence between the introduced populations and fish inhabiting two lakes dow2022-01-01T00:00:00Z2022 Jul2025-04-25T18:13:20.984Z2022-07-20T05:16:11.425ZS-EPMC92518653581390610.1002/ece3.9050