| 玉米籽粒淀粉含量的遗传效应分析 |
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| 引用本文： | 朱保侠,裴玉贺,郭新梅,李玉冰,宋希云.玉米籽粒淀粉含量的遗传效应分析[J].东北农业大学学报,2012(10):115-119. |
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| 作者姓名： | 朱保侠 裴玉贺 郭新梅 李玉冰 宋希云 |
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| 作者单位： | 1. 青岛农业大学农学与植物保护学院,山东 青岛 266109
2. 青岛市主要农作物种质创新与应用重点实验室,山东 青岛 266109 |
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| 基金项目： | 青岛市农业科技支撑项目(09-1-1-70-nsh);山东省农业良种工程;山东省农业科技成果转化资金项目 |
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| 摘 要： | 以9个淀粉含量不同的玉米自交系为亲本,按照GriffingⅠ双列杂交模式组配72个杂交组合,研究玉米籽粒淀粉含量的遗传效应.结果表明,淀粉含量遗传方式以加性效应为主,杂交组合的淀粉含量主要表现为正向杂种优势,并与母本和中亲值呈极显著相关.杂交组合淀粉含量的特殊配合力(SCA)与双亲的一般配合力(GCA)效应之间无相关性,不能简单地依据组合双亲的GCA效应来推断其后代的SCA效应,自交系陕814和Lx00-6的淀粉含量和GCA都较高,可以作为今后高淀粉育种的重要资源.
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| 关 键 词： | 玉米 淀粉含量 配合力效应 杂种优势 遗传效应 |
Genetic effect analysis of starch content on maize kernels |
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| ZHU Baoxia,PEI Yuhe,GUO Xinmei,LI Yubing,SONG Xiyun.Genetic effect analysis of starch content on maize kernels[J].Journal of Northeast Agricultural University,2012(10):115-119. |
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| Authors: | ZHU Baoxia PEI Yuhe GUO Xinmei LI Yubing SONG Xiyun |
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| Institution: | 1,2(1.School of Agronomy and Plant Protection,Qingdao Agricultural University,Qingdao Shandong 266109,China;2.Qindao Key Lab of Germplasm Innovation and Application of Major Crops,Qingdao Shandong 266109,China) |
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| Abstract: | A set of 9×9 full diallel(GriffingⅠ) crosses were made using nine inbred lines of maize(Zea mays L.) with different starch contents and genetic effects of starch contents in the 72 crosses were studied.The results showed that the heredity of starch content was mainly affected by the additive gene effect.A positive heterosis was observed for starch content of the crosses.The starch contents of crosses were significantly correlated with that of the middle-parent and the female parent.There were no significant relationship between specific combining ability(SCA) effects of the starch contents in hybrids and general combining ability(GCA) of their parents.Specific combining ability effects of offspring could not be simply inferred from general combining ability effects of their parents.Shan814 and Lx00-6 had high starch contents and high GCA,and could be used as breeding resources for breeding high starch content maize in the future. |
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| Keywords: | maize starch content combining ability effect heterosis genetic effect |
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