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| 玉米产量及相关性状的QTL分析 | |
| 引用本文： | 靳晓春,李庭峰,吴方勇,王霞,张林,邸宏,王振华.玉米产量及相关性状的QTL分析[J].玉米科学,2011,19(5):10-18. |
| 作者姓名： | 靳晓春 李庭峰 吴方勇 王霞 张林 邸宏 王振华 |
| 作者单位： | 1. 东北农业大学农学院,哈尔滨,150030 2. 东北农业大学农学院,哈尔滨 150030;黑龙江省农垦科学院作物所,黑龙江 佳木斯 154007 3. 黑龙江省丰禾种业有限公司,黑龙江 双城,150100 4. 黑龙江八一农垦大学,黑龙江 大庆,163319 |
| 基金项目： | 转基因生物新品种培育科技重大专项(2011ZXO8003-003)、国家自然科学基金项目(30571166)、黑龙江博士后科研启动资金(LBH-Q06099) |
| 摘 要： | 以玉米自交系吉846和掖3189为亲本,组建含有280个F7家系的RILs群体为试验材料,构建含117个SSR位点和50个AFLP位点的遗传连锁图谱,图谱总长度2 638.3cM,标记间平均距离15.8cM。采用复合区间作图法对10个产量及相关性状进行QTL分析,共检测到108个QTL,其中4个QTL相对稳定表达。结果表明,第1染色体上控制株高的qPh-2-1,位于标记P66M89315-P37M70169之间,可提供的表型贡献率为5.72%～8.40%;第3染色体上控制穗位高的qEh-3-1,位于标记P66M47273-umc1400之间,可提供的表型贡献率为17.01%～21.06%,为主效QTL;第4染色体上控制穗长的qEl-4-2,位于标记umc1058-umc2289之间,可提供的表型贡献率为4.42%～6.72%;第8染色体上控制穗粗的qEd-8-1,位于标记bnlg240-umc1268之间,可提供的表型贡献率为5.33%～9.57%。Bin2.00-2.01、Bin2.04-2.05、Bin3.05-3.09、Bin7.01-7.02和Bin8.05-8.07这5个区域可能是产量及相关性状QTL的密集区域。 |
| 关 键 词： | 玉米 RILs群体 产量 QTL |
| 收稿时间： | 2011/2/15 0:00:00 |
QTL Mapping for Yield and Related Characters |
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| JIN Xiao-chun,LI Ting-feng,WU Fang-yong,WANG Xi,WANG Zhen-hu,et al..QTL Mapping for Yield and Related Characters[J].Journal of Maize Sciences,2011,19(5):10-18. | |
| Authors: | JIN Xiao-chun LI Ting-feng WU Fang-yong WANG Xi WANG Zhen-hu |
| Institution: | JIN Xiao-chun1,LI Ting-feng1,2,WU Fang-yong3,WANG Xia4,WANG Zhen-hua1,et al.(1.Northeast Agricultural University,College of Agronomy,Harbin 150030,2.Heilongjiang Land Reclamation Academy of Crops,Jiamusi 154007,3.Heilongjiang Fenghe Seed Company,Harbin 150100,4.Heilongjiang August First Land Reclamation University,Daqing 163319,China) |
| Abstract: | The 280 recombinant inbred lines(F7) derived from cross Ji846 and Ye3189 as the mapping populations were constructed in this study. A linkage map (2638.3 cM distance; 15.8 cM average interval) was constructed with 117 SSR and 50 AFLP markers. The study identified 108 QTL associated with 10 characters via CIM (composite interval mapping) method, four were stable expressing. The QTL qPh-2-1(P66M89315-P37M70169) controlled plant height, average contribution rate was 7.13%; QTL qEh-3-1(P66M47273-umc1400) controlled ear height, average contribution rate was 19.49%; QTL qEl-4-2(umc1058-umc2289) controlled ear length, average contribution rate was 5.64%;QTL qEd-8-1(bnlg240-umc1268) controlled ear diameter, average contribution rate was 7.99%. The stable expression QTL could be further used in molecular marker-assisted breeding. |
| Keywords: | Maize RILs population Yield QTL |
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