Bacterial Chromosome Organization and Segregation | Zendy

E. Toro | Zendy; L Shapiro | Zendy

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Bacterial Chromosome Organization and Segregation

Author(s) -

E. Toro,

L Shapiro

Publication year - 2010

Publication title -

cold spring harbor perspectives in biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 6.011

H-Index - 173

ISSN - 1943-0264

DOI - 10.1101/cshperspect.a000349

Subject(s) - biology , nucleoid , chromosome segregation , mitosis , dna replication , dna , circular bacterial chromosome , cell division , chromosome , genetics , microbiology and biotechnology , cell , evolutionary biology , escherichia coli , gene

Bacterial chromosomes are generally approximately 1000 times longer than the cells in which they reside, and concurrent replication, segregation, and transcription/translation of this crowded mass of DNA poses a challenging organizational problem. Recent advances in cell-imaging technology with subdiffraction resolution have revealed that the bacterial nucleoid is reliably oriented and highly organized within the cell. Such organization is transmitted from one generation to the next by progressive segregation of daughter chromosomes and anchoring of DNA to the cell envelope. Active segregation by a mitotic machinery appears to be common; however, the mode of chromosome segregation varies significantly from species to species.

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