Table 1 Biosynthesis of volatile compound related genes in each cluster identified by k-means cluster analysis

1

ADH2(VIT_204s0044g01110), ADH1(VIT_218s0001g15410), LOXA (VIT_206s0004g01510), LOXO (VIT_209s0002g01080), LOX (VIT_206s0004g01450), OPDA (VIT_218s0041g02010), OPDA (VIT_218s0041g02070), OPDA (VIT_218s0041g02020), OPDA (VIT_218s0041g02060), OPCL1(VIT_218s0001g00290), OPCL1(VIT_217s0000g01790), ACX (VIT_208s0032g01100), ACAT (VIT_205s0051g00720)

CAAT (VIT_208s0058g01000), PAL (VIT_216s0039g01100),

PAL (VIT_216s0039g01110), PAL (VIT_216s0039g01120),

PAL (VIT_216s0039g01130), PAO (VIT_200s1937g00010), TAT (VIT_212s0028g03210)

ACCAT (VIT_218s0089g00520), ACCAT (VIT_218s0089g00570), ACCAT (VIT_218s0089g00590), HMGCR (VIT_218s0122g00610), HMGCR (VIT_204s0044g01740), HMGCS (VIT_202s0025g04580), MK (VIT_214s0128g00330), PMK (VIT_202s0012g02530), DXS1(VIT_205s0020g02130), DXS (VIT_200s0218g00110), MCT (VIT_212s0035g01950), MDS (VIT_202s0025g00370), IPPI (VIT_204s0023g00600), TPS (VIT_200s0271g00030), GT14(VIT_218s0001g06060), GT15(VIT_206s0004g05780), PSY1(VIT_204s0079g00680), PSY2(VIT_212s0028g00960), GGPPS (VIT_219s0090g00530), GGPPS (VIT_218s0001g12000), PDS (VIT_209s0002g00100), ZDS (VIT_214s0030g01740), LUT1(VIT_208s0007g04530), NCED3(VIT_219s0093g00550), NCED2(VIT_210s0003g03750), NCED (VIT_204s0008g03380), XDH (VIT_213s0019g01010), AAO (VIT_206s0009g00770)

2

ADH (VIT_204s0044g01130), LOX (VIT_206s0004g01480), LOX (VIT_201s0010g02750), HPL (VIT_212s0059g01060), OPDA (VIT_218s0041g02260), ACX (VIT_216s0022g01150)

CAAT (VIT_211s0016g03720), PAO (VIT_200s0225g00090)

HMGCS (VIT_214s0036g00810), PPMD (VIT_213s0106g00790), DXS (VIT_211s0052g01730), IPPI (VIT_214s0006g01710), IPPI (VIT_211s0206g00020), GPPS (VIT_215s0024g00850), TPS60(VIT_200s0385g00020), TPS26(VIT_219s0014g04810), TPS66(VIT_200s0372g00030), TPS55(VIT_200s0271g00010), CRTISO (VIT_208s0032g00800), NCED1(VIT_205s0051g00670), CCD4b(VIT_202s0087g00930), AAO (VIT_218s0041g02400), AAO (VIT_218s0041g02430),

3

AOS (VIT_218s0001g11630), ACX (VIT_200s0662g00010), ACX (VIT_212s0028g02660), ACX (VIT_208s0105g00460), ACX (VIT_216s0022g01120), ACX (VIT_211s0037g01380), MEP2(VIT_211s0016g03690), MEP2(VIT_205s0077g02140)

HPA (VIT_206s0004g02170), PAO (VIT_217s0000g09100), TAT (VIT_219s0014g02190), CAAT (VIT_204s0008g03770), CAAT (VIT_212s0028g01820), PAL (VIT_206s0004g02620), PAL (VIT_213s0019g04460), PAL (VIT_216s0039g01300), PAL (VIT_216s0039g01320),

ACCAT (VIT_200s0531g00050), HMGCR (VIT_203s0038g04100), GGPPS (VIT_203s0038g03050), TPS09(VIT_218s0001g04710), TPS04(VIT_218s0001g04120), TPS12(VIT_218s0001g04990), TPS10(VIT_218s0001g04780), TPS28(VIT_219s0014g04930), TPS69(VIT_219s0085g00830), TPS35(VIT_212s0134g00030), GT7(VIT_216s0050g01580), PSY3(VIT_206s0004g00820), ZISO (VIT_205s0062g01110), LBCY (VIT_208s0007g05690), CCD1.2(VIT_213s0064g00810)

4

AOC (VIT_201s0011g03090), LOX (VIT_213s0064g01480)

4HPPD(VIT_212s0028g00710), PAL (VIT_200s2849g00010), PAL (VIT_211s0016g01520), PAL (VIT_216s0039g01170), PAL (VIT_216s0039g01360)

DXR (VIT_217s0000g08390), FPPS (VIT_219s0015g01010), GGPPS (VIT_205s0020g01240), TPS27(VIT_219s0014g04900), TPS56(VIT_200s0271g00060), CRTISO (VIT_212s0035g01080), CCD1.1(VIT_213s0064g00840), AAO (VIT_218s0041g02410), BCH (VIT_202s0025g00240), BCH (VIT_216s0050g01090),

5

ADH (VIT_204s0044g01120), LOX (VIT_213s0064g01500), OPDA (VIT_218s0041g02080), ACX (VIT_213s0019g03850), ACX (VIT_216s0022g01160), ACX (VIT_202s0012g02920),

HPA (VIT_206s0004g02180), HPA (VIT_218s0072g00940)

ACCAT (VIT_212s0057g01200), ACCAT (VIT_218s0089g00560), HMGCS (VIT_217s0000g02800), HMGCS (VIT_217s0000g02790), DXS (VIT_204s0008g04970), CMK (VIT_206s0009g02320), CMK (VIT_206s0009g02310), LUT5(VIT_204s0023g00080), CCD4a(VIT_202s0087g00910), AAO (VIT_218s0041g02390)

6

ADH (VIT_216s0039g00320), ADH3(VIT_218s0001g15450), LOX (VIT_200s0265g00170)

CAAT (VIT_204s0008g06040), TAT (VIT_212s0028g03200), TAT (VIT_218s0072g00010), PAL (VIT_208s0040g01710), PAL (VIT_216s0039g01240), PAL (VIT_216s0039g01280)

HMGCS (VIT_216s0022g01310), DXS (VIT_211s0052g01780), GGPPS (VIT_204s0023g01210), LECY (VIT_211s0016g01880), CRTISO (VIT_204s0023g01790), AAO (VIT_212s0055g01125)