| 玉米叶绿素含量基因效应分析 |
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| 引用本文： | 李洪涛,许瀚元,李景芳,祝庆,迟铭,王军.玉米叶绿素含量基因效应分析[J].作物杂志,2019,35(5):46-93. |
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| 作者姓名： | 李洪涛 许瀚元 李景芳 祝庆 迟铭 王军 |
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| 作者单位： | 连云港市农业科学院,222006,江苏连云港 |
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| 基金项目： | 江苏省农业重大新品种创制项目(PZCZ201711);连云港市财政专项支持(QNJJ1906);连云港市财政专项支持(QNJJ1920);连云港市财政专项支持(QNJJ1807);连云港市财政专项支持(QNJJ1707);连云港市“521工程”资助项目(LYG52105-2018019);江苏省第五期“333工程”培养资金资助项目;第四批江苏现代农业科技综合示范基地项目 |
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| 摘 要： | 为了研究控制玉米叶绿素含量的遗传规律,以叶绿素含量存在显著差异的2个普通玉米自交系组配的P1、P2、F1、BC1、BC2、F2 6个世代为试验材料,运用主基因+多基因遗传模型分析方法,探明玉米叶绿素含量的遗传模型,并进行遗传参数估计。结果表明,F1叶绿素含量杂种优势表现为正向离中亲优势,无超亲优势;玉米叶绿素含量的遗传受2对加性-显性-上位性主基因+加性-显性多基因共同控制,以主基因遗传为主,非加性效应大于加性效应;2对主基因与多基因的加性效应均为减效,显性效应均为增效,上位性效应累计为正向;BC1、BC2、F2叶绿素含量主基因的遗传率分别为74.58%、78.62%、20.84%,多基因的遗传率分别2.84%、7.69%、68.11%。
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| 关 键 词： | 玉米 叶绿素含量 主基因+多基因 遗传 |
| 收稿时间： | 2019-04-11 |
Analysis of Gene Effect on Chlorophyll Content in Maize |
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| Li Hongtao,Xu Hanyuan,Li Jingfang,Zhu Qing,Chi Ming,Wang Jun.Analysis of Gene Effect on Chlorophyll Content in Maize[J].Crops,2019,35(5):46-93. |
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| Authors: | Li Hongtao Xu Hanyuan Li Jingfang Zhu Qing Chi Ming Wang Jun |
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| Institution: | Lianyungang Academy of Agricultural Sciences, Lianyungang 222006, Jiangsu, China |
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| Abstract: | In order to elucidate the inheritance mechanism of chlorophyll content in maize, six generations (P1, P2, F1, BC1, BC2, and F2) from the cross L055×Qi319 were investigated with mixed major gene plus polygene genetic model. The results showed that F1 heterosis showed positive ionophoric dominance and no hyperphilic dominance. The chlorophyll content was controlled by 2 major genes with additive-dominance-epistatic effects and polygene with additive-dominant effects which mainly governed by major genes, and the effect of the non-additive gene effect was much more important than the additive ones. The additive effects of 2 major genes with polygene could decrease the chlorophyll content, while the dominant effect and the epistatic effect increased the chlorophyll content in maize. The major gene heritability of the chlorophyll content in BC1, BC2, and F2 were 74.58%, 78.62% and 20.84%, respectively. The polygene heritability in BC1, BC2, and F2 were 2.84%, 7.69% and 68.11%, respectively. |
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| Keywords: | Maize Chlorophyll content Major gene and polygene Inheritance |
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