Fig. 4
Heat map and cluster analysis of transcripts of genes related to ripening. Gene expression level data were normalised to z-scores using the formula log10 (FPKM + 1) by colour key and density plot. The transition from green to red represents the value of gene expression from low to high during fruit ripening. The genes annotated in relevant pathways: carotenoid biosynthesis (PSY/crtB: 15-cis-phytoene synthase; PDS/crtP: 15-cis-phytoene desaturase; ZDS/crtQ: zeta-carotene desaturase; BCH/crtZ1: beta-carotene hydroxylase 1; CCS/lcyB/crtY: capsanthin/capsorubin synthase); ABA biosynthesis and metabolism (ZEP/ ABA1: zeaxanthin epoxidase; NCED1: 9-cis-epoxycarotenoid dioxygenase1; NCED3: 9-cis-epoxycarotenoid dioxygenase 3; AAO1: abscisic-aldehyde oxidase 1; CYP707A1, abscisic acid 8′-hydroxylase); ABA signaling (PYL12: abscisic acid receptor; PP2C37: protein phosphatase 2C 37; PP2C37-like: protein phosphatase 2C 37-like; SnRK2: serine/threonine-protein kinase SRK2-like; ABI5: abscisic acid-insensitive 5-like protein); ethylene biosynthesis and signaling (ACO3: 1-aminocyclopropane-1-carboxylate oxidase 3; CTR1: ethylene response sensor 1; CTR2: ethylene response sensor 2; EIN2: ethylene-insensitive protein 2; EIN3: ethylene-insensitive protein 3; ERF1: ethylene-responsive transcription factor 1B-like); IAA biosynthesis and signaling (GH3: indole-3-acetic acid-amido synthetase GH3.1; IAA, auxin-responsive protein IAA); GA signaling (GID1,gibberellin receptor GID1); JA signaling (MYC2, transcription factor MYC2); cytokinin signaling (ARR5: two-component response regulator 5)