在 Shannon信息量的基础上 ,对非平衡群体建立了群体基因型相对信息量S′( G) ,纯合体相对信息量 S′J( G)和杂合体相对信息量 S′H( G)的概念 ,并赋予遗传学意义。与基因一致度 J和基因多样度 D的理论比较表明 ,二者在数量规律上有很好的一致性 ,但又是相对独立的指标体系 ,且相对信息量还有新的内涵。 S′( G)既能表征基因变异 ,又能反映基因型水平上的遗传变异 ,S′J( G)主要反映纯合体的遗传变异 ,S′H( G)主要反映杂合体的遗传变异。各相对信息量既可反映群体的遗传变异程度 ,又能比较不同位点间的遗传变异程度 Based on the Shannon information, the relative information S ’(G), the relative information S’J (G) and the relative information S’H (G) of the population were established for the non-equilibrium population Concept, and give genetic significance. The theoretical comparison between gene identity J and gene diversity D shows that the two are in good agreement with the quantitative laws, but they are relatively independent indicator systems, and the relative information content has new connotations. S ’(G) can not only characterize the genetic variation but also reflect the genetic variation at the genotype level. S’J (G) mainly reflects the genetic variation of homozygotes, and S’H (G) mainly reflects the genetic variation of heterozygotes. The relative amount of information can reflect both the degree of genetic variation and the degree of genetic variation among different loci