Table 1.
Genes/QTLs affecting rhizome traits in the O. sativa (RD23)/O. longistaminata F2 population
| Loci | Ch. | Marker interval | Trait | LOD | A | PA | D | D/A |
|---|---|---|---|---|---|---|---|---|
| QRl1 | 1 | RM306–RM237 | RL | 3.10 | −1.17 | 0.0024 | 1.28 | −1.09 |
| RIL | 3.40 | −0.16 | 0.0013 | 0.17 | −1.06 | |||
| Rhz2 | 3 | OSR13–OSR16 | RBD | 12.71 | −0.83 | 0 | — | — |
| RIL | 10.91 | −0.53 | 0 | — | — | |||
| TN | 6.64 | −21.7 | 0 | — | — | |||
| QRn3 | 3 | RM282–RM5551 | RN | 7.11 | −1.58 | 0 | — | — |
| RBN | 8.51 | −0.51 | 0 | — | — | |||
| RL | 7.78 | −3.15 | 0 | — | — | |||
| RIN | 12.38 | −1.01 | 0 | — | — | |||
| Rhz3 | 4 | RM119–RM273 | RN | 3.85 | −0.60 | 0.0975 | 1.28 | −2.13 |
| RBD | 14.39 | −0.89 | 0 | — | — | |||
| RBN | 8.11 | −0.41 | 0.0001 | 0.34 | −0.83 | |||
| RL | 13.12 | −1.93 | 0 | 2.31 | −1.20 | |||
| RIL | 15.58 | −0.31 | 0 | 0.37 | −1.19 | |||
| RIN | 7.46 | −0.66 | 0.0002 | 0.58 | −0.88 | |||
| TN | 8.82 | −23.5 | 0 | 11.8 | −0.50 | |||
| SDW | 13.33 | −31.0 | 0 | 18.7 | −0.60 | |||
| RDW | 2.31 | −0.25 | 0.4181 | 1.15 | −4.6 | |||
| QRn5 | 5 | RM161–RM274 | RN | 2.06 | −1.03 | 0.0022 | — | — |
| RL | 2.85 | −1.22 | 0.003 | — | — | |||
| RIL | 3.38 | −0.24 | 0.0001 | — | — | |||
| RIN | 3.64 | −0.71 | 0.0001 | — | — | |||
| RBD | 3.20 | −0.33 | 0.0017 | −0.25 | 0.76 | |||
| QRl6 | 6 | RM30–RM7309 | RBD | 2.92 | −0.48 | 0.0013 | — | — |
| RL | 2.86 | −1.47 | 0.0004 | — | — | |||
| RIL | 3.15 | −0.25 | 0.0002 | — | — | |||
| TN | 4.13 | −17.3 | 0.0001 | — | — | |||
| QRl7 | 7 | RM336–RM234 | RBD | 2.77 | −0.31 | 0.0004 | — | — |
| RL | 3.51 | −1.46 | 0.0002 | — | — | |||
| RIL | 3.74 | −0.23 | 0.0001 | — | — | |||
| QRn10 | 10 | RM271–RM269 | RN | 3.74 | −1.20 | 0.0001 | −0.65 | 0.54 |
| RL | 4.34 | −1.59 | 0 | −0.80 | 0.50 | |||
| RIL | 5.22 | −0.24 | 0 | −0.14 | 0.58 | |||
| RIN | 3.81 | −0.61 | 0 | — | — | |||
| RDW | 2.12 | −0.92 | 0.0035 | — | — | |||
| QRbd2 | 2 | RM71–RM300 | RBD | 4.21 | −0.39 | 0 | — | — |
| RDW | 3.66 | −1.30 | 0.0001 | −0.75 | 0.58 | |||
| QRn6 | 6 | RM345–OSR21 | RN | 2.50 | −1.11 | 0.0018 | — | — |
| RIN | 5.51 | −0.86 | 0 | −0.61 | 0.71 | |||
| QRn2 | 2 | RM341–RM327 | RN | 4.09 | −1.55 | 0 | −1.00 | 0.65 |
| QRn7 | 7 | RM125–RM180 | RN | 3.46 | −1.03 | 0.0006 | 0.75 | −0.73 |
Ch., chromosome; RN, rhizome number per plant; RBD, rhizome branching degree; RBN, rhizome branching number per plant; RL, average rhizome length (in cm); RIL, average rhizome internode length (in cm); RIN, average rhizome internode number; RDW, rhizome dry weight (in g) per plant; TN, tiller number per plant; A and D, QTL additive and dominance effects, respectively; PA, probability associated with QTL additive effects. The presented dominance effects are all significant at P < 0.05, and − represents insignificant effects.