| 不同密度下玉米DH群体果穗性状的QTL定位分析 |
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| 引用本文： | 张建华,刘志增,祝丽英,黄亚群,陈景堂,高慧,赵永锋.不同密度下玉米DH群体果穗性状的QTL定位分析[J].河北农业大学学报,2009,32(5). |
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| 作者姓名： | 张建华 刘志增 祝丽英 黄亚群 陈景堂 高慧 赵永锋 |
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| 作者单位： | 河北农业大学,农学院,河北,保定,071001 |
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| 基金项目： | 河北省十一五科技攻关，河北农业大学科技将帅计划 |
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| 摘 要： | 试验利用由79个DH系组成的‘农单5号’DH群体,分别在6万株/hm2和13.5万株/hm22个密度、2次重复条件下,调查了玉米穗长、秃尖长、穗粗、穗行数、行粒数、粒长、粒宽和粒厚等穗部性状,利用在双亲间存在差异且均匀分布于玉米10条染色体上的160对SSR标记对该群体进行遗传作图,并采用复合区间作图法对上述性状进行QTL分析。结果表明:在2个密度条件下共检测出30个QTL位点,单个QTL所解释的表型变异在3.26%~31.59%之间,QTL与环境之间存在复杂的互作关系。在2个密度水平下分别检测到的qEL2a(umc1165-umc1261)与qEL2b(umc1165-umc1261)可能是同一位点,qRN4a(umc2135-bnlg292a)、qRN4b(bn-lg292a-bnlg292b)和qED4(bnlg292a-bnlg292b)也很可能是同一位点。在4.08 bin区间存在着控制穗粗或穗行数的重要基因,而该基因位于umc2135-bnlg292b标记区间。
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| 关 键 词： | 玉米 DH群体 穗部性状 QTL |
QTL mapping for ear traits under different densities using DH population of maize |
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| ZHANG Jian-hua,LIU Zhi-zeng,ZHU Li-ying,HUANG Ya-qun,CHEN Jing-tang,GAO Hui,ZHAO Yong-feng.QTL mapping for ear traits under different densities using DH population of maize[J].Journal of Agricultural University of Hebei,2009,32(5). |
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| Authors: | ZHANG Jian-hua LIU Zhi-zeng ZHU Li-ying HUANG Ya-qun CHEN Jing-tang GAO Hui ZHAO Yong-feng |
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| Institution: | ZHANG Jian-hua,LIU Zhi-zeng,ZHU Li-ying,HUANG Ya-qun,CHEN Jing-tang,GAO Hui,ZHAO Yong-feng(College of Agronomy,Agricultural University of Hebei,Baoding 071001,China) |
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| Abstract: | A total of 79 DH lines derived from Nongdan 5 were used to test QTL which controlled ear traits under two densities(60 000 plants/hm2 and 135 000 plants/hm2) and two replications,respectively.Genetic map of the population was constructed by using 160 polymorphic SSR makers on the 10 chromosomes.The composite interval mapping method was employed to analyze the QTLs for maize ear traits such as ear length,barren tip length,ear diameter,ear row number,kernel number per row,kernel length,kernel width and kernel... |
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| Keywords: | QTL |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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