Fig. 8
Expression patterns of Chilo suppressalis-induced genes involved in terpenoid biosynthetic pathways. a Pathway schematic of terpenoid metabolism. Uppercase letters are genes that encoded enzymes. Solid arrows represent established biosynthesis steps, while broken arrows indicate the involvement of multiple enzymatic reactions. MVA, mevalonate; MEP, 2-C-methyl-D-erythritol 4-phosphate; HMG-CoA, Hydroxymethylglutaryl-CoA; HMGR, HMG-CoA reductase; DMAPP, dimethylallyl pyrophosphate; IPP, isopentenyl pyrophosphate; IDI, IPP isomerase; GAP, glyceraldehyde-3-phosphate; DXP, 1-deoxy-D-xylulose 5-phosphate; DXS, DXP synthase; DXR, 1-deoxy-D-xylulose 5-phosphate reductoisomerase; CDP-ME, 4-diphosphocytidyl-2-C-methyl-D-erythritol; MCT, 4-diphosphocytidyl-2-C-methyl-Derythritol synthase; CMK, 4-diphosphocytidyl-2-C-methyl-D-erythritol kinase; CDP-ME-2P, 4-diphosphocytidyl-2-C-methyl-D-erythritol 2-phosphate; MEcPP, 2-C-methyl-D-erythritol 2,4-cyclodiphosphate; HDS, 4-hydroxy-3-methylbut-2-enyl diphosphate synthase; HMBPP, 4-hydroxy-3-methylbut-2-enyl diphosphate; GPP, geranyl diphosphate; GPS, GPP synthase; FPP, farnesyl diphosphate; FPS, FPP synthase; GGPP, geranylgeranyl diphosphate; GGPS, GGPP synthase; CPP, copalyl diphosphate; CPS, CPP synthase; KS, kaurene synthase; PMD, Pimara-8(14),15-diene; KH, Ent-isokaurene C2-hydroxylase; HDIK, ent-2-alpha-Hydroxyisokaurene; GA2o, GA 2-oxidase; PSY, phytoene synthase; PS, phytoene synthase; ZEP, zeaxanthin epoxidase; VON, 9-cis-Violaxanthin; NON, 9′-cis-Neoxanthin; NCED, 9-cis-epoxycarotenoid dioxygenase; ABA, abscisic acid. b Heatmap of relative expression levels of the genes involved in the schematic pathway. The heatmap was generated from the RPKM data using MeV (V4.9.0)