A low rate of nucleotide changes in Escherichia coli K-12 estimated from a comparison of the genome sequences between two different substrains

被引：13

作者：

Itoh, T

Okayama, T

Hashimoto, H

Takeda, J

Davis, RW

Mori, H

Gojobori, T ^{[1
]}

机构：

[1] Hitachi Software Engn, Yokohama, Kanagawa 2310015, Japan

[2] Stanford Univ, DNA Sequencing & Technol Ctr, Stanford, CA 94305 USA

[3] Nara Inst Sci & Technol, Res & Educ Ctr Genet Informat, Ikoma 6300101, Japan

[4] Natl Inst Genet, Ctr Informat Biol, Mishima, Shizuoka 4118540, Japan

来源：

FEBS LETTERS | 1999年 / 450卷 / 1-2期

关键词：

Escherichia coli; genome project; complete genome; rate of nucleotide substitution; rate of nucleotide change; insertion sequence;

D O I：

10.1016/S0014-5793(99)00481-0

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Two genome sequences of Escherichia coli K-12 substrains, one partial W3110 and one complete MG1655, have been determined by Japanese and American genome projects, respectively. In order to estimate the rate of nucleotide changes, we directly compared 2 Mb of the nucleotide sequences from these closely-related E, coli substrains, Given that the two substrains separated about 40 years ago, the rate of nucleotide changes mas estimated to be less than 10(-7) per site per year, This rate was supported by a further comparison between partial genome sequences of E, coli and Shigella flexneri. (C) 1999 Federation of European Biochemical Societies.

引用

页码：72 / 76

页数：5

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