| 利用F2:3群体对玉米花期相关性状的QTL分析 |
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| 引用本文： | 孙婷婷,姜昱,沈鑫,朴仁哲,金峰学.利用F2:3群体对玉米花期相关性状的QTL分析[J].玉米科学,2013,21(2):42-46. |
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| 作者姓名： | 孙婷婷 姜昱 沈鑫 朴仁哲 金峰学 |
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| 作者单位： | 吉林省农业科学院农业生物技术研究所, 长春 130033;延边大学农学院, 吉林 延吉 133200;吉林省农业科学院农业生物技术研究所, 长春 130033;中国科学院植物研究所, 北京 100093;延边大学农学院, 吉林 延吉 133200;吉林省农业科学院农业生物技术研究所, 长春 130033 |
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| 基金项目： | 教育部回国人员科技项目启动经费、吉林省博士后科技项目启动经费、吉林省农业科学院博士后启动项目经费 |
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| 摘 要： | 以玉米自交系四287与四144为亲本的188个F2:3家系为材料, 考察玉米花期相关性状, 并利用该群体的分子遗传连锁图谱进行QTL分析。结果表明, 共检测到11个与玉米花期相关的QTL, 包括与抽雄期相关的2个QTL, 位于第3和第8染色体上, 贡献率分别为21.9%和13.6%;与散粉期相关的3个QTL, 位于第1、3和第8染色体上, 贡献率分别为14.8%、21.0%和18.5%;与吐丝期相关的2个QTL, 位于第3和第8染色体上, 贡献率分别为16.5%和20.1%;与散粉-吐丝间隔期相关的4个QTL, 位于第1、6、7和第8染色体上, 贡献率分别为23.5%、25.3%、28.9%和20.9%。这些QTL的基因效应以部分显性和显性为主。
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| 关 键 词： | 玉米 花期相关性状 数量性状位点(QTL)定位 |
| 收稿时间： | 2012/11/11 0:00:00 |
QTL Analysis of Flowering Related Traits in Maize Using F2:3 Population |
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| SUN Ting-ting,JIANG Yu,SHEN Xin,PIAO Ren-zhe.QTL Analysis of Flowering Related Traits in Maize Using F2:3 Population[J].Journal of Maize Sciences,2013,21(2):42-46. |
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| Authors: | SUN Ting-ting JIANG Yu SHEN Xin PIAO Ren-zhe |
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| Institution: | Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun 130033;Agricultural College, Yanbian University, Yanji 133200;Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun 130033;Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;Agricultural College, Yanbian University, Yanji 133200;Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun 130033 |
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| Abstract: | To identify and characterize the effects of quantitative trait loci(QTL) underlying maize flowering related traits including days to tasseling(DTT), days to pollen-shedding(DTP), days to silking(DTS) and anthesis-silking interval(ASI), F2:3 population from the cross between Si287 and Si144 were developed. The 188 F3 lines were evaluated for 4 flowering related traits. Genotypes were determined for 188 F2 plants using simple sequence repeat(SSR) makers. QTL analysis was carried out to determine relationship between marker genotype and the traits evaluated. A total of 11 QTLs were identified using composite interval mapping(CIM) analysis. Among these, 2 QTLs for DTT were detected on chromosomes 3 and 8, which explained 21.9% and 13.6%, respectively; 3 QTLs for DTP were detected on chromosomes 1, 3 and 8, which explained 14.8%, 21.0% and 18.5%, respectively; 2 QTLs for DTS were detected on chromosomes 3 and 8, which explained 16.5% and 20.1%, respectively; 4 QTLs for ASI were detected on chromosomes 1, 6, 7 and 8, which explained 23.5%, 25.3%, 28.9% and 20.9%, respectively. Most of QTLs showed partially dominance or dominance. |
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| Keywords: | Maize Flowering related trait Quantitative trait loci(QTL) |
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