PT Journal AU Duplais, C Papon, N Courdavault, V TI Tracking the Origin and Evolution of Plant Metabolites SO Trends in Plant Science JI Trends Plant Sci. PY 2020 BP 1182 EP 1184 VL 25 IS 12 DI 10.1016/j.tplants.2020.08.010 DE enzyme evolution; iridoids; Lamiaceae; nepetalactone; plant metabolites AB Iridoids are monoterpenes that are produced by various plants as chemical defense molecules. Lichman et al. recently described the timeline of molecular events that underpin the re-emergence of iridoid biosynthesis in an independent lineage of aromatic plants (catnip). This study represents a benchmark for studying enzyme and metabolite evolution in different clades across the tree of life. © 2020 Elsevier Ltd ER