| 两个小麦矮秆品种矮化特性的遗传 |
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| 引用本文： | 任正隆,李尧权.两个小麦矮秆品种矮化特性的遗传[J].四川农业大学学报,1983(2). |
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| 作者姓名： | 任正隆 李尧权 |
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| 作者单位： | 四川农学院农学系，四川农学院农学系 |
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| 摘 要： | <正> 在遗传学中研究的许多特性,需要用量测值来表现。由于这些性状在生长发育过程中受环境条件的影响,其表现型的量测值通常在某一范围内波动。在杂交后代的群体中,它们常常呈现一种连续的分布。研究这种连续变异的一般方法,是利用数量遗传的理论,估算有关基因的平均效应。但是,已经有不少研究者报导了这样一些性状,虽然它们的杂交后代表现为连续的变异,它们却是由少数几对基因控制的。如果采用适当的分类方法,也可以对它们
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INHERITANCE OF DWARFNESS IN TWO WHEAT CULTIVARS ORIGINATED FROM THE TRANSGRESSIVE SEGREGATION |
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| Abstract: | A method of genetical analysis of the metrical traits with continuous variability has been developed in this paper. According to the view-point that the frequency distribution of F_2 generation should be combined by the distributions of every genotype involved in the population, the theoretical frequency distribution in F_2 should be f(x)=∑ (Ci/(√2πσ))e ((y-μ_i)~2/(2σ~2)) where μ_i is the mean of the i th genotype and Ci is the frequency of the genotype in the F_2 population. σ is the standard diviation of a genotype. And the expected plant numbers of the interval xj, xi+1) is p(xj≤ε
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