| 摘要: |
| 研究建立了普通群体遗传的系列数学模型,系统讨论了1对等位基因所构成的3种基因型频率在群体中的动态规律、遗传趋势、频率变化与世代的关系,以及群体平衡时的特殊性质,并对普通群体、近亲交配群体及其参数与性质进行了对比分析和讨论。结果表明,随机交配群体和自交群体是普通群体的两种极端;随机交配率越大群体趋于平衡越快;随机交配率与杂合子频率呈正相关,与纯合子频率呈负相关;随机交配率大于零时,等位基因频率相等,杂合子频率最高;随机交配率等于1/2且等位基因频率相等时,3种基因型频率相等。 |
| 关键词: 普通群体 随机交配率 基因型频率 数学模型 |
| DOI： |
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| Genetic law in general population Ⅰ. Heredity a couple of allele |
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| Abstract: |
| The paper discussed the relation between genetic law,genetic trend,generation and equilibrium population of three genotype frequency consisting of a couple allele in general population.Meanwhile,it established series mathematics model and analyzde and contrastde the general population and inbreeding population.The results showed as follows:panmixis populations and self populations are two extremes in general population.The higher the panmixis rate is,the faster the population shows tendency to equilibrium.When a population reaches equilibrium,the panmixis rate is directly proportional to a heterozygous frequency and diversely proportional to a homozygous frequency;When r>0 and p=q=1/2,heterozygous frequency is highest;when r=1/2,m1=m2=m3=1/3. |
| Key words: general population,panmixis rate,genotypic frequency,mathematics model |
