ISSN:
1432-0991
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
,
Medizin
Notizen:
Abstract The IncP plasmids R68.45 and pJB3JI mediate retrotransfer (i.e., transfer of chromosomal markers from the recipient bacterium to the original donor) in homologous matings withAzotobacter vinelandii. Retrotransfer is not an early event inAzotobacter. On the contrary, it begins after genetic transfer in the usual direction, i.e., from the donor bacterium to the recipient, has been taking place for some time. Transfer of chromosomal markers mediated by the RP4/Tn5-Mob system does not undergo retrotransfer. The simplest hypothesis compatible with our results is that IncP plasmids that confer a high chromosome-mobilizing ability promote retrotransfer when transferred to the recipient bacteria.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02092316
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