水稻高秆染色体片段代换系Z1377的鉴定及重要农艺性状QTL定位

崔国庆,王世明,马福盈,汪会,向朝中,李云峰,何光华,张长伟,杨正林,凌英华,赵芳明

Identification of Rice Chromosome Segment Substitution Line Z1377 with Increased Plant Height and QTL Mapping for Agronomic Important Traits

Guo-Qing CUI,Shi-Ming WANG,Fu-Ying MA,Hui WANG,Chao-Zhong XIANG,Yun-Feng LI,Guang-Hua HE,Chang-Wei ZHANG,Zheng-Lin YANG,Ying-Hua LING,Fang-Ming ZHAO

表2 水稻重要农艺性状QTL

Table 2 QTLs for agronomic important traits in rice

性状 Trait QTL 染色体 Chr. 连锁标记 Linked marker 估计效应 Estimated effect 贡献率 Var. (%) P值 P-value 株高Plant height (cm) qPH3 3 RM14412 7.52 28.59 0.0008 株高Plant height (cm) qPH5 5 RM3321 4.65 10.96 0.0305 倒一节Length of the first internode (cm) qLFI2 2 RM6378 1.15 3.65 0.0474 倒三节Length of the third internode (cm) qLTI4 4 RM7187 1.19 8.50 0.0367 倒三节长Length of the third internode (cm) qLTI6-1 6 RM3183 1.80 19.41 0.0031 倒三节长Length of the third internode (cm) qLTI6-2 6 RM103 1.13 7.59 0.0484 倒四节长Length of the fourth internode (cm) qLFOI3 3 RM14412 1.31 16.44 0.0043 穗长Panicle length (cm) qPL2 2 RM6378 1.30 11.00 0.0124 一次枝梗数Number of primary branch qNPB2 2 RM6378 0.54 8.09 0.0188 二次枝梗数Number of secondary branch qNSB2 2 RM6378 4.57 11.09 0.0082 粒长Grain length (mm) qGL3 3 RM14412 0.18 12.38 0.0220 粒长Grain width (mm) qGW2 2 RM6378 -0.06 7.43 0.0210 实粒数Grains per panicle qGPP6 6 RM3183 38.86 0.50 0.0062 实粒数Grains per panicle qGPP9 9 RM7048 90.26 2.71 0.0025 总粒数Spikelets per panicle qSPP2 2 RM6378 14.68 5.82 0.0433 有效穗数Panicle number qPN7 7 RM5481 -2.53 3.90 0.0293