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大肠杆菌K12染色体dnaB区域中基因重复的高频率。

High frequency of genetic duplications in the dnaB region of the Escherichia coli K12 chromosome.

作者信息

Sclafani R A, Wechsler J A

出版信息

Genetics. 1981 Aug;98(4):677-89. doi: 10.1093/genetics/98.4.677.

Abstract

The region that includes the dnaB locus on the E. coli K12 chromosome was shown to be duplicated at high frequency in cell populations. The duplications were shown to be arranged in tandem and segregated at various frequencies. Segregation was dependent on the recA recombination system, but independent of recB,C. Though most of the data was obtained with dnaB::Tn10 insertion mutants, the duplications were shown to occur in the absence of Tn10.

摘要

包含大肠杆菌K12染色体上dnaB基因座的区域在细胞群体中被证明会高频重复。这些重复序列呈串联排列,并以不同频率分离。分离依赖于recA重组系统,但不依赖于recB、C。尽管大部分数据是通过dnaB::Tn10插入突变体获得的,但重复序列在没有Tn10的情况下也会出现。

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本文引用的文献

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On an unstable cell state in yeast.关于酵母中的不稳定细胞状态。
Cold Spring Harb Symp Quant Biol. 1951;16:75-85. doi: 10.1101/sqb.1951.016.01.007.
7
Linkage map of Escherichia coli K-12, edition 6.大肠杆菌K-12连锁图谱,第6版。
Microbiol Rev. 1980 Mar;44(1):1-56. doi: 10.1128/mr.44.1.1-56.1980.

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