| 玉米花丝活力的遗传分析 |
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| 引用本文： | 吴欣,崔子田,胡彦民,刘宗华,李绍伟,王建文,汤继华.玉米花丝活力的遗传分析[J].作物学报,2010,3(10):1786-1790. |
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| 作者姓名： | 吴欣 崔子田 胡彦民 刘宗华 李绍伟 王建文 汤继华 |
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| 作者单位： | 1河南农业大学农学院,河南郑州450002;2开封市农林科学研究院,河南开封475004 |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目，国家自然科学基金项目 |
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| 摘 要： | 花丝活力长短在一定程度上影响着玉米制种产量和杂交种产量,对玉米生产具有重要意义。为阐明玉米花丝活力的遗传机理,本研究利用来自优良玉米杂交种农大108的一套203个重组近交系群体,通过1年3点的田间试验对玉米花丝活力进行了遗传分析,结果发现同一基因型的花丝活力在不同环境中存在较大的差异。利用复合区间作图法定位了8个不同位点的QTL,分布在玉米第3、第5、第6、第7和第8染色体上,单个QTL可解释花丝活力表型变异的11.06%～20.82%,该研究为玉米花丝活力的选择提供了一定的理论依据。
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| 关 键 词： | 玉米 花丝活力 QTL 分析 |
| 收稿时间： | 2010-01-02 |
Genetic Analyses of Silk Vigor in Maize |
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| WU Xin,CUI Zi-Tian,HU Yan-Min,LIU Zong-Hua,LI Shao-Wei,WANG Jian-Wen,TANG Ji-Hua.Genetic Analyses of Silk Vigor in Maize[J].Acta Agronomica Sinica,2010,3(10):1786-1790. |
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| Authors: | WU Xin CUI Zi-Tian HU Yan-Min LIU Zong-Hua LI Shao-Wei WANG Jian-Wen TANG Ji-Hua |
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| Institution: | 1. College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China;2. Institute of Food Crops, Kaifeng Academy of Agricultural and Forestry Sciences, Kaifeng 475004, China |
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| Abstract: | Silk vigor is an important trait that effects hybrid seed production and hybrid production in maize. For dissecting the genetic basis of silk vigor, a set of 203 recombinant inbred lines (RIL) population, which derived from the elite hybrid Nongda 108 (Huang C × Xu 178), were evaluated at three environments. The results showed that silk vigor of genotype had significant distinct at different environments. Eight different QTL were detected for silk vigor using composite interval mapping method, and located on chromosomes 3, 5, 6, 7, and 8, with 11.06%–20.82% phenotypic contribution of silk vigor, this study can aid to seed vigor selection in maize breeding. |
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| Keywords: | QTL |
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