RT Journal Article SR Electronic T1 Genomic local adaptation of a generalist plant species to pollinator communities and abiotic factors JF bioRxiv FD Cold Spring Harbor Laboratory SP 2022.08.05.502924 DO 10.1101/2022.08.05.502924 A1 Frachon, L. A1 Arrigo, L. A1 Rusman, Q. A1 Poveda, L. A1 Qi, W. A1 Scopece, G. A1 Schiestl, F.P. YR 2022 UL http://biorxiv.org/content/early/2022/08/05/2022.08.05.502924.abstract AB The reproductive success of generalist flowering plants is influenced by a complex ecological network that includes interactions with a diverse pollinator community and abiotic factors. However, knowledge about of the adaptative potential of plants to complex ecological networks and the underlying genetic mechanisms is still limited. Based on a pool-sequencing approach of 21 natural populations of Brassica incana in Southern Italy, we combined a genome-environmental association analysis with a genome scan for signature of selection to discover genetic variants associated with ecological variation. We demonstrated that B. incana is locally adapted both to the identity of functional categories and overall pollinator interactions. Interestingly, we observed only few shared candidate genes associated with long-tongue bees, soil texture, and temperature variation. Our results highlight the genomic architecture of generalist flowering plant adaptation to complex biotic interactions, and the importance of considering multiple environmental factors to describe the adaptive landscape of plant populations.Competing Interest StatementThe authors have declared no competing interest.