| 小麦茎秆特性的遗传模型研究 |
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| 引用本文： | 崔党群,闻捷,聂利红,陈锋. 小麦茎秆特性的遗传模型研究[J]. 河南农业科学, 2002, 0(9): 4-7 |
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| 作者姓名： | 崔党群 闻捷 聂利红 陈锋 |
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| 作者单位： | 河南农业大学,郑州,450002 |
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| 基金项目： | 国家“九五”科技攻关项目“小麦超高产亲本材料创新与超高产性状研究”的一部分 (96 - 0 0 2 - 0 2 - 0 3- 0 1) |
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| 摘 要： | 选用 8个亲本 ,组配成 2 8个双列杂交组合 ,研究了普通小麦节间长和茎粗的遗传模型。结果表明 ,倒一节间长为加性—上位性模型遗传 ,倒二和基部第一、三节间长为加性—显性—上位性模型遗传 ;基部第二节间长和所有茎粗性状为加性—显性模型遗传 ,显性程度分别为部分显性或部分到完全显性。最后 ,根据各性状的遗传模型和基因在亲本中的分布 ,讨论了杂交后代中茎秆特性的选择和亲本选配
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| 关 键 词： | 小麦 茎秆特性 遗传模型 双列杂交 加性—显性模型 |
| 修稿时间： | 2002-04-24 |
Studies on the genetic model of stem characters in wheat |
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| CUI Dang qun,WEN Jie,NIE Li hong,CHEN Feng. Studies on the genetic model of stem characters in wheat[J]. Journal of Henan Agricultural Sciences, 2002, 0(9): 4-7 |
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| Authors: | CUI Dang qun WEN Jie NIE Li hong CHEN Feng |
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| Abstract: | The field test with 28 diallel crosses involving 8 parents in 1999-2000 showed that the inheritance of top 1 st internode length fit additive epistasis model,the inheritance of top 2nd and basal 1 st and 3rd internode length fit additive dominance epistasis model,the inheritance of basal 2nd internode length and all stem diameter characters fit additive dominance model.Dominance degrees were partial dominance or partial to complete dominance.Selecting of stem characters in offspring and the parents selection in cross were discussed,according to the genetic model and gene distribution in parents. |
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| Keywords: | Wheat Stem character Genetic model Diallel cross Additive dominance model |
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