增加穗粒数的水稻染色体代换系Z747鉴定及相关性状QTL定位

王大川,汪会,马福盈,杜婕,张佳宇,徐光益,何光华,李云峰,凌英华,赵芳明

Identification of rice chromosome segment substitution Line Z747 with increased grain number and QTL mapping for related traits

Da-Chuan WANG,Hui WANG,Fu-Ying MA,Jie DU,Jia-Yu ZHANG,Guang-Yi XU,Guang-Hua HE,Yun-Feng LI,Ying-Hua LING,Fang-Ming ZHAO

表2 Z747携带的水稻重要农艺性状QTL

Table 2 QTL for rice agronomically important traits detected in Z747

性状 Trait QTL 染色体 Chr. 连锁标记 Linked marker 加性效应 Additive effect 贡献率 Var. (%) P值 P-value 可能的等位基因 Possible alleles 株高 qPH-3-1 3 RM5474 -7.79 9.45 0.0004 OsRLCK102[20] Plant height qPH-3-2 3 RM3417 5.74 5.15 0.0003 HTD2 [21] qPH-3-3 3 RM6266 5.03 10.30 <0.0001 — qPH5 5 RM5874 13.67 27.54 0.0003 — qPH11 11 RM7120 5.31 4.39 0.0090 — 穗长 qPL3 3 RM6266 0.51 2.70 0.0020 — Panicle length qPL11 11 RM7120 1.28 6.61 0.0012 — 一次枝梗数 qNPB2 2 RM1385 0.59 6.07 0.0002 Pbr2[22] Number of primary branch qNPB3 3 RM3766 0.83 7.45 0.0012 — qNPB9 9 RM24537 1.79 9.96 <0.0001 — qNPB12 12 RM247 -1.07 8.14 0.0049 — 二次枝梗数 qNSB2 2 RM6378 2.33 1.65 0.0004 — Number of secondary branch qNSB3 3 RM3766 3.86 7.83 0.0005 — qNSB5 5 RM18067 3.59 5.92 0.0036 JMJ703[23] qNSB6 6 RM494 -2.46 7.10 0.0004 — qNSB-9-1 9 RM7048 -7.39 20.71 0.0007 — qNSB-9-2 9 RM24537 6.29 6.05 0.0001 — 实粒数 qGPP2 2 RM1385 8.89 4.53 0.0014 — Grain number per panicle qGPP-9-1 9 RM7048 -28.08 19.83 0.0008 — qGPP-9-2 9 RM24537 18.49 3.66 0.0038 — qGPP12 12 RM3331 -18.64 8.21 <0.0001 ND1[24] 总粒数 qSPP3 3 RM3766 20.73 9.66 0.0002 — Spikelet number per panicle qSPP5 5 RM18067 20.07 7.90 0.0015 — qSPP9 9 RM7048 -29.51 14.15 0.0044 — 结实率 qSSR1 1 RM259 -24.38 11.97 0.0001 DFO1[25] Seed setting rate qSSR2 2 RM1385 4.65 1.19 0.0069 — qSSR-3-1 3 RM5474 18.66 9.82 <0.0001 OsMCA1[26] qSSR-3-2 3 RM3766 -10.38 3.58 0.0014 OsFRDL1[27] qSSR5 5 RM5874 42.72 46.67 <0.0001 PTB1[28] qSSR6 6 RM5371 -17.59 6.48 0.0013 DCM1[29] qSSR-9-1 9 RM7048 -20.74 10.33 0.0004 — qSSR-9-2 9 RM24537 23.28 5.24 <0.0001 — qSSR12 12 RM3331 -14.58 4.80 <0.0001 — 粒长 qGL3 3 RM6266 0.40 63.73 <0.0001 — Grain length qGL5 5 RM18067 0.24 9.29 0.0007 — qGL12 12 RM3331 0.16 3.21 0.0047 — 粒宽 qGW2 2 RM1385 -0.07 5.59 0.0080 OsVPE3[30] Grain width qGW5 5 RM18148 -0.08 6.05 0.0029 — 长宽比 qRLW2 2 RM1385 0.08 5.35 0.0004 — Rate of length to width qRLW-3-1 3 RM3766 0.10 5.42 0.0047 — qRLW-3-2 3 RM6266 0.13 19.74 <0.0001 — qRLW5 5 RM18148 0.13 10.17 0.0002 — qRLW6 6 RM494 -0.09 10.31 <0.0001 — qRLW12 12 RM3331 0.15 7.70 <0.0001 — 千粒重 qGWT2 2 RM1385 -0.80 4.01 0.0048 OsVPE3[30] 1000-kernel weight qGWT3 3 RM6266 1.82 28.67 <0.0001 —