Table 1.
Representative candidate genes determined by different metabolites (DMs)-gene Pearson correlation analysis, which are likely involved in grafted cucumber fruit flavor. NG—non-grafted plants.
| Metabolism Classification | Metabolism Name | Candidate Gene Identifier | Log2FC | Functional Annotation | PCC | Combination |
|---|---|---|---|---|---|---|
| Sugars | Fructose-6-phosphate | Csa2G252020 | 1.04 | Glycolysis/gluconeogenesis | 0.94045252 | GNo.45 vs. NG |
| Csa2G252020 | 1.04 | Biosynthesis of amino acids | 0.94045252 | GNo.45 vs. NG | ||
| Csa2G252020 | 1.04 | Carbon metabolism | 0.94045252 | GNo.45 vs. NG | ||
| Csa2G252020 | 1.04 | Pentose phosphate pathway | 0.94045252 | GNo.45 vs. NG | ||
| Csa2G252020 | 1.04 | Fructose and mannose metabolism | 0.94045252 | GNo.45 vs. NG | ||
| Csa2G252020 | 1.04 | Carbon fixation in photosynthetic organisms | 0.94045252 | GNo.45 vs. NG | ||
| Trehalose | Csa3G402970 | 1.09 | Starch and sucrose metabolism | −0.9259965 | GNo.45 vs. GNo.96 | |
| Csa5G568300 | 2.05 | Starch and sucrose metabolism | −0.9785609 | GNo.45 vs. GNo.96 | ||
| Csa7G343850 | 1.42 | Starch and sucrose metabolism | −0.8501167 | GNo.45 vs. GNo.96 | ||
| Csa4G028470 | −1.54 | Starch and sucrose metabolism | 0.99523926 | GNo.45 vs. GNo.96 | ||
| Fatty acids | Csa1G611290 | 1.12 | Starch and sucrose metabolism | −0.9745222 | GNo.45 vs. GNo.96 | |
| Csa6G500540 | −1.04 | Starch and sucrose metabolism | 0.98015624 | GNo.45 vs. GNo.96 | ||
| Amino acids | Linoleic acid | Csa2G023880 | 1.53 | Linoleic acid metabolism | −0.9748707 | GNo.45 vs. NG |
| 4.32 | Linoleic acid metabolism | 0.99350244 | GNo.96 vs. NG | |||
| Isoleucine | Csa6G487590 | −1.04 | Biosynthesis of amino acids | −0.864884 | GNo.45 vs. NG | |
| Csa2G404730 | 1.11 | Biosynthesis of amino acids | 0.96014285 | GNo.45 vs. NG | ||
| Csa2G252020 | 1.04 | Biosynthesis of amino acids | 0.94045252 | GNo.45 vs. NG | ||
| Proline | Csa6G487590 | −1.04 | Biosynthesis of amino acids | −0.864884 | GNo.45 vs. NG | |
| Csa2G404730 | 1.11 | Biosynthesis of amino acids | 0.96014285 | GNo.45 vs. NG | ||
| Csa2G252020 | 1.04 | Biosynthesis of amino acids | 0.94045252 | GNo.45 vs. NG | ||
| Valine | Csa6G487590 | −1.04 | Biosynthesis of amino acids | −0.864884 | GNo.45 vs. NG | |
| Csa2G404730 | 1.11 | Biosynthesis of amino acids | 0.96014285 | GNo.45 vs. NG | ||
| Csa2G252020 | 1.04 | Biosynthesis of amino acids | 0.94045252 | GNo.45 vs. NG |