Table 3.
Principal component analysis for aliphatic glucosinolate contents and the relative expression level of the biosynthesis-related genes in four cabbage lines of B. oleracea. PC, principal component; p, statistical significance; SD, standard deviation.
| Variable | PC1 | PC2 | PC3 |
|---|---|---|---|
| Progoitrin | −0.16 | 0.09 | 0.55 |
| Glucoraphanin | 0.42 | −0.08 | 0.17 |
| Sinigrin | 0.42 | −0.07 | 0.17 |
| Gluconapin | 0.42 | −0.09 | 0.14 |
| Glucoerucin | −0.07 | −0.24 | 0.05 |
| ST5b (Bol026201) | 0.34 | 0.09 | 0.12 |
| ST5b (Bol026202) | 0.41 | 0.15 | 0.12 |
| ST5c (Bol030757) | 0.03 | 0.41 | −0.21 |
| FMOGS-OX2 (Bol010993) | 0.01 | 0.44 | 0.18 |
| FMOGS-OX5 (Bol029100) | −0.13 | 0.40 | 0.18 |
| FMOGS-OX5 (Bol031350) | 0.13 | 0.40 | −0.21 |
| AOP2 (Bo2g102190) | 0.01 | 0.10 | −0.52 |
| AOP2 (Bo9g006240) | 0.09 | −0.42 | −0.19 |
| GSL-OH (Bol033373) | −0.34 | −0.09 | 0.35 |
| %variation explained | 36.3 | 31.8 | 17.1 |
| p (genotype) | <0.001 | <0.001 | <0.001 |
| Genotype | Mean PC Scores (±SD) | ||
| BN3273 | 3.58 ± 0.41 | −0.69 ± 0.61 | 0.57 ± 0.74 |
| BN3383 | −0.32 ± 0.35 | 3.29 ± 0.55 | −0.80 ± 0.53 |
| BN4059 | −2.09 ± 0.38 | −0.46 ± 0.18 | 1.88 ± 0.75 |
| BN4072 | −1.17 ± 0.28 | −2.13 ± 0.18 | −1.65 ± 0.95 |