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Trends Microbiol. 1996 Feb;4(2):69-72.

Genetic barriers among bacteria.

Author information

1
Laboratoire de Mutagenese, Institut Jacques Monod, Paris, France. matic@ccr.jussieu.fr

Abstract

Barriers to chromosomal gene transfer between bacterial species control their genetic isolation. These barriers, such as different microhabitats, the host ranges of genetic exchange vectors and restriction-modification systems, limit gene exchange, but the major limitation is genomic sequence divergence. The mismatch-repair system inhibits interspecies recombination, the inducible SOS system stimulates interspecies recombination, while natural selection determines the effective recombination frequencies.

PMID:
8820570
DOI:
10.1016/0966-842X(96)81514-9
[Indexed for MEDLINE]

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