从杂合子适合度取值范围看自然选择单位的4种学说的内在统一

Integrity of Four Theories on Natural Selection Unit Based on the Value Field of Fieness of Heterozygote

[目的]探讨关于自然选择单位的4种学说的内在联系。[方法]建立数学模型,探讨适合度的随机交配群体两种基因频率在后代的变化规律。[结果]根据研究中建立的数学模型,发现突变基因必须在纯和杂2方面都满足自然选择的要求,而且能在杂合状态下表现出高适合度,才更容易被保留下来,这就兼顾到个体的适应与集体的适应。[结论]该研究结果显示关于自然选择单位的4种学说是可共存的,彼此间分享了一个共同的前提。

[Objective] This study was to discuss the internal relationship of the four theories on natural selection unit.[Method] By using the method of mathematical model,to explore fitness random mating population two gene frequency in the progeny of the change rule.[Result] According to mathematical models constructed in the study,the mutant gene must meet the requirements of nature selection on heterozygous and homozygous aspects,as well as showed high fitness in heterozygous condition,could the mutant gene be kept,giving consideration to both individual and population adaptation.[Conclusion] The result of this study suggested that the four theories on natural selection unit can be co-existed,and they share common premises.