グルタミン合成酵素遺伝子の進化は分子進化の中立説で捉えられる〔英文〕 (木村資生先生古希祝賀献呈論文<特集>)

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概要

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• Evolution of glutamine synthetase gene is discussed on the results of DNA sequence analysis of the gene. Thirty DNA sequences of various organisms spanning from prokaryotes to eukaryotes were collected from the DNA data banks and translated first, they were aligned next, then evolutionary distances were computed, and molecular phylogeny was finally estimated. The results of the alignment reveal that functionally important regions of glutamine synthetase have been evolutionarily more conserved than the remaining regions. The evolutionary distances computed also show that the rate of synonymous substitution is higher than that of nonsynonymous substitution. These are well in accordance with the neutral theory of molecular evolution. Besides, the molecular phylogeny obtained shows that the origin of glutamine synthetase gene is much earlier than the divergence between eukaryotes and prokaryotes, suggesting that the gene is one of the oldest genes functioning now.

• 日本遺伝学会の論文
• 1994-10-25

著者

• Tateno Yoshio

  National Institute Of Genetics

• 舘野 義男

  National Institute of Genetics

関連論文

• グルタミン合成酵素遺伝子の進化は分子進化の中立説で捉えられる〔英文〕 (木村資生先生古希祝賀献呈論文)

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