Eukaryotes-prokaryotes divergence estimated by 5S ribosomal RNA sequences.
Eukaryotes-prokaryotes divergence estimated by 5S ribosomal RNA sequences.
复制标题
通过 5S 核糖体 RNA 序列估计真核生物-原核生物差异。
DOI：
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发表时间：
1973
期刊：
影响因子：
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通讯作者：
T. Ohta
中科院分区：
文献类型：
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作者：
M. Kimura;T. Ohta
DATING the principal events in the history of life on the Earth is an interesting subject in evolutionary studies. Here we estimate the time of divergence of the eukaryotes and the prokaryotes through comparative studies of 5S ribosomal RNA sequences, coupled with those of cytochrome c. By prokaryotes we mean primitive forms having no true nucleus (bacteria and blue-green algae), while by eukaryotes we mean higher nucleated organisms such as plants and animals including yeasts and fungi. The principle we use in our estimation is that the rate of nucleotide substitutions in the course of evolution is constant per year per site for each informational macromole-cule as long as the structure and function of the molecule remain unaltered.
