| 不同施氮水平下水稻株高与抽穗期的QTL比较分析 |
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| 引用本文： | 冯跃,翟荣荣,曹立勇,林泽川,魏兴华,程式华.不同施氮水平下水稻株高与抽穗期的QTL比较分析[J].作物学报,2011,37(9):1525-1532. |
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| 作者姓名： | 冯跃 翟荣荣 曹立勇 林泽川 魏兴华 程式华 |
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| 作者单位： | 中国水稻研究所 / 国家水稻改良中心 / 国家水稻生物学重点实验室, 浙江杭州 310006 |
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| 基金项目： | 农业部作物种质资源保护项目(NB2011-2130135-27); 中央级公益性科研院所专项资金资助项目(2009RG001-3); 浙江省重点科技创新团队项目(2010R50024-16)资助 |
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| 摘 要： | 利用超级杂交稻协优9308 (协青早B×中恢9308)衍生的重组自交系(recombinant inbred line, RIL)群体及其分子连锁图谱, 应用Windows QTL Cartographer 2.5对施氮和不施氮条件下水稻株高(PH)和抽穗期(HD)进行了QTL分析。在2种氮水平下检测到9个株高QTL和8个抽穗期QTL, 检测到4个影响2种环境下株高和抽穗期差值的QTL, 单个QTL可解释的表型变异介于5.68%~18.40%之间；在第7染色体上RM5436附近和第8染色上RM5556~RM310区间检测到同时控制2种氮水平下株高和抽穗期的QTL, 各位点的遗传效应贡献率较大, 增效等位基因均来源于R9308, 适用于分子标记辅助育种和聚合育种。在第2染色体上RM5916~RM166区间和第8染色体上RM2366~RM5767区间分别检测到1个影响2种氮水平下抽穗期差值和1个株高差值的QTL可能对水稻的氮素高效利用有直接贡献。
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| 关 键 词： | 水稻 氮水平 株高 抽穗期 QTL分析 |
| 收稿时间： | 2010-12-31 |
QTL Analysis for Plant Height and Heading Date in Rice under Two Nitrogen Levels |
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| FENG Yue,ZHAI Rong-Rong,CAO Li-Yong,LIN Ze-Chuan,WEI Xing-Hua, CHENG Shi-Hua China National Rice Research Institute/National Center for Rice Improvement/State Key Laboratory of Rice Biology,Hangzhou ,China.QTL Analysis for Plant Height and Heading Date in Rice under Two Nitrogen Levels[J].Acta Agronomica Sinica,2011,37(9):1525-1532. |
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| Authors: | FENG Yue ZHAI Rong-Rong CAO Li-Yong LIN Ze-Chuan WEI Xing-Hua CHENG Shi-Hua China National Rice Research Institute/National Center for Rice Improvement/State Key Laboratory of Rice Biology Hangzhou China |
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| Institution: | China National Rice Research Institute / National Center for Rice Improvement / State Key Laboratory of Rice Biology, Hangzhou 310006, China |
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| Abstract: | A recombinant inbred line(RIL),derived from a super hybrid rice cross of XQZB/R9308 and its genetic linkage map were used to identify QTLs through Windows QTL Cartographer 2.5 for plant height(PH) and heading date(HD) under low and normal nitrogen conditions in rice.Nine QTLs for PH and eight QTLs for HD were detected under two nitrogen levels,four QTLs for trait differences of PH and HD were detected between the two environments,explaining 5.68-18.40% of phenotypic variation.The pleiotropic QTLs influencin... |
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| Keywords: | Rice Nitrogen level Plant height Heading date QTL analysis |
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