Table 2.
Correlation matrix based on Pearson’s correlation coefficient between major morphophysiological traits and gene expression data under the present experimental set-up
| SR | EA | LGF | POR | HYD | DEN | WAX | LGF1 | SUB1A-1 | SUB1C | |
|---|---|---|---|---|---|---|---|---|---|---|
| SR | 1 | |||||||||
| EA | –0.759** | 1 | ||||||||
| LGF | 0.880** | –0.948** | 1 | |||||||
| POR | 0.092 | 0.276 | –0.019 | 1 | ||||||
| HYD | 0.622* | –0.800** | 0.845** | -0.041 | 1 | |||||
| DEN | 0.148 | –0.285 | 0.090 | –0.881** | 0.060 | 1 | ||||
| WAX | 0.859** | –0.865** | 0.954** | 0.044 | 0.845** | 0.010 | 1 | |||
| LGF1 | 0.906** | –0.841** | 0.916** | 0.055 | 0.649* | 0.048 | 0.894** | 1 | ||
| SUB1A-1 | 0.900** | –0.869** | 0.952** | 0.110 | 0.824** | 0.050 | 0.933** | 0.930** | 1 | |
| SUB1C | -0.929** | 0.875** | –0.960** | –0.068 | –0.808** | –0.097 | –0.937** | –0.935** | –0.992** | 1 |
The * and ** denote a significant correlation between two traits at P < 0.05 and P < 0.01, respectively, according ro paired t-test.
SR, survival rate; EA, elongation ability; LGF, leaf gas film thickness; POR, tissue porosity; HYD, leaf hydrophobicity; DEN, leaf density; WAX, epicuticular wax content; and LGF1, SUB1A-1 and SUB1C are the relative transcript abundance of LGF1, SUB1A-1 and SUB1C, respectively.