| 摘要: |
| 应用平均基因杂合度、Nei的基因分化系数(Gst)、Lewontin的Shannon信息测度及W right的固定指数(Fst)对陕西境内2个山羊群体存在多态的血液蛋白位点的基因频率进行了遗传变异分析。研究表明:山羊群体的遗传变异主要是由系统内血液蛋白的多态现象造成,系统间的遗传差异仅在8%以下;平均基因杂合度是度量群体遗传变异的最适指标,而Gst、Shannon信息测度值及Fst均可用于剖析遗传变异在系统内及系统间的分布。 |
| 关键词: 山羊，血液蛋白位点，遗传变异 |
| DOI： |
| 分类号:S827.2 |
| 基金项目:国家自然科学基金资助项目的一部分 |
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| Genetic Differentiation of Blood Protein Loci on Goat Populations |
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| Abstract: |
| The genetic variances were analysed by the gene frequencies of 5 blood
protein loci of two goat populations in Shaanxi with average gene heterozygosity, gene
diversity index,Shannon infromation measurement and fixed index proposed by Wright.
The results indicated: the genetic variance of the goat populaiton mainly resulted from
the blood protein polymorphism within the systems,with the only difference of less than
8% between the systems.The results also showed the average gene heterozygosity was
the desirable item formeasuring population genetic variance and the Gst、Fst、Shannon
information measurement all can be used for analysing the distribution of genetic variance between and within the systems. |
| Key words: goat,blood protein loci,genetic variance, |
