长期以来，通常将控制数量性状的多基因体系作为一个整体来研究，用平均值和方差来反映数量性状的遗传特征。
The polygene system which controls quantitative trait was generally studied as a whole for a long time. Average and variance were used to reflect the heredity of quantitative trait.
长期以来，通常将控制数量性状的多基因体系作为一个整体来研究，用平均值和方差来反映数量性状的遗传特征。
The polygene system which controls quantitative trait was generally studied as a whole for a long time. Average and variance were used to reflect the heredity of quantitative trait.
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