Fig. 3From: Transcriptomic and metabolomic analyses provide insight into the volatile compounds of citrus leaves and flowersDifferential gene expression patterns of two terpenoid biosynthetic pathways in leaves of cultivated citrus species and wild or semiwild germplasms. a: biosynthetic pathway of terpenoids in plants. AACT: acetoacetyl-CoA thiolase; HMGS: 3-hydroxy-3-methylglutaryl-CoA synthase; HMGR: HMG-CoA reductase; MVK: mevalonate kinase; PMK: phosphomevalonate kinase; IDI: isopentenyl diphosphate isomerase; DXS:1-deoxy-d-xylulose 5-phosphate synthase; DXR: 1-deoxy-d-xylulose 5-phosphate reductoisomerase; IPP: isopentenyl diphosphate; FPPS: farnesyl pyrophosphate synthase; GPPS: geranyl pyrophosphate synthase; GGPPS: geranylgeranyl diphosphate synthase. b: differentially expressed genes in MVA and MEP pathways; c: differences in accumulation of monoterpenes and sesquiterpenes in the leaves of wild or semiwild species and cultivarsBack to article page