| 随机交配群体两对连锁杂合基因频率的演变模型 |
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| 引用本文： | 黄雪燕,李大林,陈奇.随机交配群体两对连锁杂合基因频率的演变模型[J].数学的实践与认识,2010,40(20). |
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| 作者姓名： | 黄雪燕 李大林 陈奇 |
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| 基金项目： | 广西教育厅科研项目，广西高校优秀人才资助计划项目 |
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| 摘 要： | 用差分方程组建立具有两对连锁杂合基因的随机交配群体4种基因10种基因型频率逐代演变的数学模型,把它们看成影射,发现不动点集位于一个超平面与一个超曲面的交集.超平面具有类似分岔点的性质,故逐代计算中需进行归一化处理.对育种工作中在哪一代选种有指导意义.
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| 关 键 词： | 基因频率 连锁 育种 差分方程组 不动点 |
A Generation Change Model of Two Pairs of Heterogenes in Linkage |
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| HUANG Xue-yan,LI Da-lin,CHEN Qi.A Generation Change Model of Two Pairs of Heterogenes in Linkage[J].Mathematics in Practice and Theory,2010,40(20). |
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| Authors: | HUANG Xue-yan LI Da-lin CHEN Qi |
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| Abstract: | A mathematical model of four kinds of genes which contain 10 genotypes frequencies' generation change is established by difference system,to study the panmictic population with two pairs of heterogenes in linkage.We find that its fixed point set is an intersection of two hyperplane when regarded as a mapping.That hyperplane has properties similar to the branch point.So normalization is necessary when generation calculate.Guiding significance when seed selection for breeding. |
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| Keywords: | gene frequency linkage breeding difference system fixed point |
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