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Cold Spring Harb Perspect Biol. 2010 Feb;2(2):a000349. doi: 10.1101/cshperspect.a000349.

Bacterial chromosome organization and segregation.

Author information

1
Department of Developmental Biology, Beckman Center, Stanford University School of Medicine, Stanford, California 94305, USA. etoro@stanford.edu

Abstract

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.

PMID:
20182613
PMCID:
PMC2828278
DOI:
10.1101/cshperspect.a000349
[Indexed for MEDLINE]
Free PMC Article
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