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我在《略论农作物品种群体的遗传和变异问题》一文中,分析了改变品种群体遗传组成的各种因素。指出机械混杂和生物学混杂对改变群体基因频率和基因型频率的影响最为严重。自然选择的影响比较缓慢。主要对与“适应”有关的性状发生作用。突变和随机漂移的影响一般比较轻微,而不恰当的人工选择常常会引起群体遗传组成的急剧变化。在此基
In my article “A Brief Discussion on the Heredity and Variation of Crop Varieties”, I analyzed various factors that changed the genetic composition of breeds. Pointed out that the most serious impact is the influence of mechanical confounding and biological confounding on the change of gene frequency and genotype frequency. The impact of natural selection is relatively slow. Mainly on the “adaptation” related traits have a role. The effects of mutation and random drift are generally mild, while inappropriate manual selection often leads to drastic changes in the genetic makeup of the population. In this base