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基于相对熵原理构建生物进化系统树 被引量:5

Constructing Phylogenic Trees Based on Relative Entropy Theory
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摘要 根据相对熵原理定义了物种进化距离 ,把它应用到基于DNA序列分析的生物进化系统树构建的研究中。首先选用 6 4种脊椎动物的线粒体DNA序列为材料 ,得到与传统的根据物种形态构建的系统树基本一致的树形 ;进而进行全基因组序列层次的物种进化的研究 ,选取长度约为线粒体DNA序列 10 2 倍的 12种古生菌、真细菌全序列 ,最终也得到了合理的系统树。 Based on relative entropy theory , a method constructing phylogenic trees has been developed. With this method, a phylogenic tree consisted of 64 mammals was constructed. Furthermore, the whole genome level phylogenic tree construction was also discussed. Our investigation shows that the relative entropy theory can be used for the construction of phylogenic trees.
作者 刘军 许甫荣
出处 《北京大学学报(自然科学版)》 CAS CSCD 北大核心 2003年第z1期76-81,共6页 Acta Scientiarum Naturalium Universitatis Pekinensis
基金 国家教育部博士点基金资助项目 (2 0 0 30 0 0 10 88)
关键词 相对熵 遗传距离 基因组 系统进化树 relative entropy phylogenic distance genome phylogenic tree
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参考文献14

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