TABLE 4.
Summary of significant SNPs within PtoFRKs associated with growth and wood properties in the association population of P. tomentosa.
| Gene | Number of associationsa | Number of associated SNPsb | Traits | Range of R2 (%) |
| PtoFRK1 | 10 | 6 | D, V, LC, FW | 0.12–0.15 |
| PtoFRK2 | 7 | 5 | D, V, LC, FW | 0.17–0.20 |
| PtoFRK3 | 5 | 5 | D, FW, LC | 0.10–0.14 |
| PtoFRK4 | 4 | 4 | FW, LC | 0.11–0.21 |
| PtoFRK5 | 5 | 3 | D, FW, LC | 0.11–0.15 |
| PtoFRK6 | 8 | 5 | D, FW, LC | 0.13–0.20 |
| PtoFRK8 | 3 | 3 | FW, LD | 0.11–0.18 |
| PtoFRK9 | 3 | 2 | FW, LD | 0.11–0.18 |
aNumber of associations: the number of associations detected (P < 0.01) in each PtoFRK. bNumber of associated SNPs: the number of associated SNPs detected for each PtoFRK (P < 0.01).