Fig. 4

Analysis of expression levels of genes involved in floral VOCs biosynthesis. a Number of transcripts for individual genes involved in different pathways. Transcript counts are presented in a logarithmic scale of 10. b qRT-PCR analysis of representative genes from (i) MEP (ii) MVA (iii) Shikimate (iv) Phenylpropanoid/Benzenoid (v) Lipoxygenase and (vi) Amino acid catabolic pathways in leaves (L) and flowers (F). DXR, 1-deoxy-D-xylulose 5-phosphate reductoisomerase; CMS, 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase; CMK, 4-(cytidine 5′-diphospho)-2-C-methyl-D-erythritol kinase; MCS, 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase; HDS, 4- hydroxy-3-methylbut-2-en-1-yl diphosphate synthase; AACT, acetyl-CoA acetyltransferase; HMGS, hydroxymethylglutaryl-CoA synthase; HMGR, hydroxymethylglutaryl-CoA reductase; MVK, mevalonate kinase; PMK, phosphomevalonate kinase; MPDC, mevalonate diphosphate decarboxylase; DAHPS, 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase; DHQS, 3-dehydroquinate synthase; SDH, shikimate dehydrogenase; SK, shikimate kinase; CM, chorismate mutase; CS, chorismate synthase; PAL, phenylalanine ammonia lyase; C4H, cinnamate-4-hydroxylase; C3H, p-coumarate-3-hydroxylase; COMT, caffeic acid/5-hydroxyferulic acid O-methyltransferase; 4CL, 4-coumaroyl-CoA ligase; CCoAOMT, caffeoyl-CoA 3-O-methyltransferase; CCR, cinnamoyl-CoA reductase; CAD, cinnamyl alcohol dehydrogenase; 9-LOX, linoleate 9S–lipoxygenase 5; 13-LOX, linoleate 13S–lipoxygenase; HPL, hydroperoxide lyase; AOS, allene oxide synthase; AOC, allene oxide cyclase; OPR, 12-oxophytodienoate reductase; BCAT, branched-chain amino-acid aminotransferase; BCKDC_E1, pyruvate dehydrogenase E1 alpha; BCKDC_E2, dihydrolipoamide acyltransferase; BCKDC_E3, dihydrolipoamide dehydrogenase; AAT, alcohol acyl transferase