Genomic differentiation and SNP variation reveal local adaptations to eastern Mediterranean environmental conditions in wild radishes

The results support the hypothesis that long-distance dispersal contributes to lower genetic diversity in populations of R. raphanistrum compared to R. pugioniformis. Considering that the distribution range of R. raphanistrum is relatively homogenous, whereas R. pugioniformis is scattered across varying topographical and climatic gradients, the results of this genome scan highlight the significant role of the environment in adaptive inter- and intra-species genetic variation in these two genetically-close species.