Table 3. The Ka/Ks for the duplication gene pairs in ZmST family.
| Duplicated pair | Duplicate type | Ka | Ks | Ka/Ks | Positive selection |
|---|---|---|---|---|---|
| ZmpGlcT1/ZmpGlcT2 | Segmental | 0.02302462 | 0.17639281 | 0.13053037 | No |
| ZmPMT7/ZmPMT9 | Segmental | 0.1887097 | 0.73309884 | 0.25741372 | No |
| ZmPMT7/ZmPMT10 | Segmental | 0.18220538 | 0.59309584 | 0.30721068 | No |
| ZmPMT8/ZmPMT9 | Segmental | 0.05922607 | 0.19262997 | 0.30746033 | No |
| ZmSFP3/ZmSFP4 | Segmental | 0.12261777 | 0.72591107 | 0.16891569 | No |
| ZmSFP6/ZmSFP9 | Segmental | 0.14390645 | 0.54307605 | 0.26498398 | No |
| ZmSTP5/ZmSTP18 | Segmental | 0.21542769 | 0.59259227 | 0.36353442 | No |
| ZmSTP5/ZmSTP19 | Segmental | 0.35185515 | 0.66335247 | 0.5304196 | No |
| ZmSTP5/ZmSTP20 | Segmental | 0.37342149 | 0.55823017 | 0.66893821 | No |
| ZmSTP18/ZmSTP19 | Segmental | 0.37160006 | 0.71051129 | 0.52300373 | No |
| ZmSTP18/ZmSTP20 | Segmental | 0.35668412 | 0.69017173 | 0.51680489 | No |
| ZmSTP19/ZmSTP20 | Segmental | 0.1612672 | 0.44168081 | 0.3651216 | No |
| ZmSUT3/ZmSUT7 | Segmental | 0.22699235 | 0.76180805 | 0.29796528 | No |