Table 1.
Annotated pepper compounds nominally associated with color.
| Compound Name | p-Value * | FDR | Green vs. Red ^ | Green vs. Yellow ^ | Red vs. Yellow ^ | Class |
|---|---|---|---|---|---|---|
| Beta-Cryptoxanthin | 0.000074 | 0.0080 | 0.010 | 0.677 | 0.035 | Carotenoid |
| PC(O-20:0/O-1:0) | 0.000128 | 0.0080 | 0.012 | 0.459 | 0.059 | Phospholipid/PC |
| PC(O-20:0/O-1:0) | 0.000129 | 0.0080 | 0.012 | 0.454 | 0.059 | Phospholipid/PC |
| PI(18:2/13:0) | 0.000154 | 0.0080 | 0.021 | 0.035 | 0.384 | Phospholipid/PI |
| DG(22:6/18:0) | 0.000769 | 0.0186 | 0.705 | 0.047 | 0.060 | Glycerolipid/DG |
| PG(22:2/20:0) | 0.001613 | 0.0318 | 0.052 | 0.117 | 0.999 | Phospholipid/PG |
| DG(20:5/14:0) | 0.002207 | 0.0366 | 0.053 | 0.071 | 0.761 | Glycerolipid/DG |
| TG(22:2/15:0/20:5) | 0.003347 | 0.0458 | 0.001 | 0.077 | 0.390 | Glycerolipid/TG |
| PI(P-20:0/14:1) | 0.003822 | 0.0458 | 0.014 | 0.002 | 0.331 | Phospholipid/PI |
| MGDG(18:1/18:1) | 0.003996 | 0.0458 | 0.999 | 0.095 | NA | Glycerolipid/MG |
| TG(18:4/20:5/18:4) | 0.004664 | 0.0458 | 0.018 | 0.002 | 0.240 | Glycerolipid/TG |
| Sucrose Acetate Isobutyrate (SAIB) | 0.006477 | 0.0560 | 0.008 | 0.387 | 0.276 | O-glycosyl |
| PI(22:1/16:0) | 0.008388 | 0.0611 | 0.017 | 0.030 | 0.957 | Phospholipid/PI |
| TG(22:4/20:2n6/22:5) | 0.008509 | 0.0611 | 0.097 | 0.303 | 0.796 | Glycerolipid/TG |
| PG(22:2/20:0) | 0.008535 | 0.0611 | 0.132 | 0.144 | 0.767 | Phospholipid/PG |
| DG(16:1/16:1) | 0.009819 | 0.0631 | 0.101 | 0.491 | NA | Glycerolipid/DG |
| DG(22:2/14:1) | 0.013877 | 0.0795 | 0.014 | 0.399 | 0.369 | Glycerolipid/DG |
| 2-ethenyl-2,4b,8,8-tetramethyl-tetradecahydrophenanthrene-3,5,10a-triol | 0.015343 | 0.0817 | 0.100 | 0.464 | 0.566 | Natural Product |
| Fargesin | 0.018186 | 0.0895 | 0.276 | 0.534 | 0.155 | Psoralen, from Fruits |
| Ascorbyl linoleate | 0.021860 | 0.1026 | 0.160 | 0.358 | 0.940 | Vitamin C metabolite |
| TG(22:4/15:0/22:4) | 0.025945 | 0.1075 | 0.255 | 0.211 | 0.710 | Glycerolipid/TG |
| TG(22:4/15:0/22:4) | 0.028741 | 0.1146 | 0.248 | 0.250 | 0.824 | Glycerolipid/TG |
| DG(18:4/15:0) | 0.030030 | 0.1154 | 0.136 | 0.717 | 0.462 | Glycerolipid/DG |
| PI(P-16:0/18:3) | 0.031557 | 0.1198 | 0.131 | 0.044 | 0.587 | Phospholipid/PI |
| Ascorbyl linoleate | 0.032964 | 0.1222 | 0.514 | 0.164 | 0.309 | Vitamin C metabolite |
| Ivermectin B1b | 0.033354 | 0.1222 | 0.110 | 0.049 | 0.676 | Antiparasitic drug |
| TG(20:4/15:0/22:5) | 0.035029 | 0.1268 | 0.912 | 0.046 | 0.062 | Glycerolipid/TG |
| Glycidyl oleate | 0.037508 | 0.1293 | 0.174 | 0.436 | 0.891 | Carboxylic ester |
| PE(15:0/20:0) | 0.038016 | 0.1293 | 0.162 | 0.575 | NA | Phospholipid/PE |
| PC(14:0/20:5) | 0.038145 | 0.1293 | 0.147 | 0.892 | 0.359 | Phospholipid/PC |
| Ascorbyl linoleate | 0.040104 | 0.1316 | 0.217 | 0.333 | 0.997 | Vitamin C metabolite |
| PC(15:0/18:4) | 0.041993 | 0.1364 | 0.245 | 0.294 | 0.926 | Phospholipid/PC |
| MGDG(18:2/18:3) | 0.043317 | 0.1392 | 0.398 | 0.220 | 0.553 | Glycerolipid/MG |
| Goyaglycoside g | 0.043762 | 0.1392 | 0.268 | 0.269 | 0.860 | Cucurbitacin glycosides |
| Ramipril | 0.045603 | 0.1408 | 0.991 | 0.253 | NA | Drug |
| PA(P-16:0/18:4) | 0.047472 | 0.1438 | 0.518 | 0.211 | 0.436 | Phospholipid/PA |
| all-trans-retinyl oleate | 0.048268 | 0.1443 | 0.388 | 0.466 | 0.052 | Prenol lipid |
| PC(14:1/20:5) | 0.050091 | 0.1448 | 0.196 | 0.590 | NA | Phospholipid/PC |
| Archaetidylglycerol-myo-inositol | 0.052834 | 0.1499 | 0.505 | 0.662 | 0.281 | Lipid |
Following database search, 39 compounds from the total 111 compounds found to be nominally associated with color (p < 0.05) (Table S2) were annotated. A total of 11 annotated compounds were found to differ by color with FDR adjusted p < 0.05 (above bold line). Compounds are sorted by p-value results following linear regression analysis (p-value *). Results (p-values ^) from pairwise comparisons of pepper color (green vs. red; green vs. yellow, red vs. yellow) are shown with p-values < 0.05 highlighted in gray.