| 小白菜耐盐性的遗传分析 |
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| 引用本文： | 邱杨,李锡香.小白菜耐盐性的遗传分析[J].中国蔬菜,2009,1(4):21-25. |
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| 作者姓名： | 邱杨 李锡香 |
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| 作者单位： | 中国农业科学院蔬菜花卉研究所，北京 100081 |
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| 基金项目： | 农业部蔬菜遗传与生理重点开放实验室资助项目 |
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| 摘 要： | 以8个具有不同耐盐水平的小白菜自交系为试验材料,按完全双列杂交Ⅱ正交全轮配法配制杂交组合,采用Hayman法对小白菜耐盐性基因效应进行了初步分析。结果表明,小白菜耐盐性遗传符合加性-显性遗传模型；耐盐性主要表现为显性,盐敏感性为隐性；遗传效应中存在加性效应和显性效应,以显性效应为主,可能存在超显性,控制耐盐性表现显性的基因组数较少。
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| 关 键 词： | 小白菜 耐盐性 完全双列杂交Ⅱ 遗传分析 |
| 收稿时间： | 2008-04-29; |
Genetic Analysis of Salinity Tolerance in Brassica campestris L.ssp. chinensis(L.)Makino var.communis Tsen et Lee. |
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| QIU Yang,LI Xi-xiang.Genetic Analysis of Salinity Tolerance in Brassica campestris L.ssp. chinensis(L.)Makino var.communis Tsen et Lee.[J].China Vegetables,2009,1(4):21-25. |
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| Authors: | QIU Yang LI Xi-xiang |
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| Institution: | Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China |
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| Abstract: | Genetics of salinity tolerance in Pak-choi were investigated by an eight-parent complete diallel cross Ⅱ design only including direct crosses.Genetic effect analysis was estimated by Hayman method.Inheritance of salinity tolerance in Pak-choi was fitted to the additive-dominant model.Salinity tolerance was mainly controlled by dominant genes and salinity sensitivity was controlled by recessive genes.There were additive effect and dominant effect in genetic effects.However,the dominant effect played a major role and over-dominance might exist in salinity tolerance exhibition.Inheritances of salinity tolerance may be controlled by few major genes. |
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