Mostert-O'Neill, Marja MirjamReynolds, Sharon MelissaAcosta, Juan JoseLee, David JohnBorevitz, Justin O.Myburg, Alexander Andrew2021-04-082021-02Mostert-O'Neill MM, Reynolds SM, Acosta JJ, Lee DJ, Borevitz JO, Myburg AA. Genomic evidence of introgression and adaptation in a model subtropical tree species, Eucalyptus grandis. Molecular Ecology 2021;30:625–638. https://doi.org/10.1111/mec.15615.0962-1083 (print)1365-294X (online)http://hdl.handle.net/2263/79370The genetic consequences of adaptation to changing environments can be deciphered using population genomics, which may help predict species' responses to global climate change. Towards this, we used genome‐wide SNP marker analysis to determine population structure and patterns of genetic differentiation in terms of neutral and adaptive genetic variation in the natural range of Eucalyptus grandis, a widely cultivated subtropical and temperate species, serving as genomic reference for the genus. We analysed introgression patterns at subchromosomal resolution using a modified ancestry mapping approach and identified provenances with extensive interspecific introgression in response to increased aridity. Furthermore, we describe potentially adaptive genetic variation as explained by environment‐associated SNP markers, which also led to the discovery of what is likely a large structural variant. Finally, we show that genes linked to these markers are enriched for biotic and abiotic stress responses.en© 2020 John Wiley & Sons Ltd. This is the pre-peer reviewed version of the following article : Genomic evidence of introgression and adaptation in a model subtropical tree species, Eucalyptus grandis. Molecular Ecology 2021;30:625–638. https://doi.org/10.1111/mec.15615. The definite version is available at : http://wileyonlinelibrary.com/journal/mec.Ancestry mappingEnvironmental associationIntrogressionPopulation genomicsPostprint Article