| 玉米粒长性状主基因+多基因遗传分析 |
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| 引用本文： | 张中伟,杨海龙,付俊,谢文锦,丰光.玉米粒长性状主基因+多基因遗传分析[J].作物杂志,2019,35(5):37-38. |
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| 作者姓名： | 张中伟 杨海龙 付俊 谢文锦 丰光 |
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| 作者单位： | 丹东农业科学院,118109,辽宁凤城 |
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| 基金项目： | 国家重点研发计划(2017YFD0101103-2) |
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| 摘 要： | 玉米粒长是培育优良玉米品种的重要选择性状。选取粒长性状表现差异显著的玉米自交系铁7922和E28,及其组建的6个世代群体P1、F1、P2、B1、B2和F2为材料,运用主-多基因混合模型遗传分析方法进行分析,研究玉米粒长的遗传规律。结果表明：粒长性状在F1表现为超亲优势,符合两对加性-显性-上位性主基因+加性-显性-上位性多基因遗传的E-1-0模型,主基因遗传率为41.22%~80.58%,多基因遗传率为17.68%~24.95%,环境因素决定粒长表型变异的19.42%~41.10%,控制玉米粒长性状的主基因效应高于多基因效应,并且主基因的加性累积效应明显,该性状在育种中可以通过世代累积进行选择。
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| 关 键 词： | 玉米 粒长 主基因+多基因 遗传 |
| 收稿时间： | 2019-02-11 |
Genetic Analysis of the Kernel Length of Maize with Mixed Model of Major Gene Plus Polygene |
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| Zhang Zhongwei,Yang Hailong,Fu Jun,Xie Wenjin,Feng Guang.Genetic Analysis of the Kernel Length of Maize with Mixed Model of Major Gene Plus Polygene[J].Crops,2019,35(5):37-38. |
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| Authors: | Zhang Zhongwei Yang Hailong Fu Jun Xie Wenjin Feng Guang |
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| Institution: | Dandong Academy of Agricultural Sciences, Fengcheng 118109, Liaoning, China |
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| Abstract: | The kernel length of maize is the important trait for superior variety selection. P1, F1, P2, B1, B2 and F2 generations of different kernel length maize inbred lines Tie 7922 and E28 were used to research on the inheritance of maize kernel length with major gene-ploygene mixed inheritance analysis. The results showed that: the kernel length represented transgressive heterosis in F1, the inheritance of maize kernel length trait fitted the model of two pair of additive-dominance-epitasis major gene plus additive- dominance-epitasis polygene about E-1-0 Model; the major gene heritability was between 41.22%-80.58%; the polygene heritability was between 17.68%-24.95%, the environmental factors of the phenotypic variation was between 19.42%-41.10%. The effects of major gene were more important than the effects of polygene to maize kernel length inheritance, and the accumulation of major genes of additive was significant, so the kernel length was selected by accumulated of generations. |
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| Keywords: | Maize (Zea mays L ) Kernel length Major gene+polygene Genetic |
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