| 摘要: |
| 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。 |
| 关键词: 非平衡群体,Shannon信息量,基因一致度,基因多样度,群体基因型信息量 |
| DOI： |
| 分类号:S188 |
| 基金项目: |
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| Shannon entropy method in disequilibrium population gene variation measurement |
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| Abstract: |
| Based on Shannon information theory, the relative information entropy of population genotype S′(G), homozygote S′J(G) and heterozygote S′H(G) were set up for the disequilibrium population, and gave it the genetic meaning.The theoretical comparison between gene identity J and gene diversity D showed that they had very good uniformity in numerical regularity, but it was an independent index system,with each relative information entropy having better character.S′(G) could not only convey gene variation, but also indicated genetic variation of genotype level.The S′J(G) mainly reflected the genetic variation of homozygote, and S′H(G) the genetic variation of heterozygote.Every relative information entropy could reflect the genetic variation degree of population and distinguish the genetic variation degree among different loci. |
| Key words: disequilibrium population,Shannon information entropy,gene identity,gene diversity,population genotype entropy |
