Insights into the plastome evolution and phylogenetic relationships of Lepidium (Brassicaceae)

Our findings suggested that cytonuclear discordance within Lepidium likely results from hybridization/introgression and incomplete lineage sorting. Meanwhile, we proposed the reclassification of L. perfoliatum within Section Lepia. This study clearly documented global patterns of plastome structural evolution, and constructed a well-supported phylogeny of Lepidium. The reliable phylogenetic tree not only provides a new viewpoint into the intrageneric relationships and sectional classification of Lepidium, but also advances our understanding of the evolutionary history of this genus.