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Transposon 10 promoted deletions and inversions in the transfer genes of R100-1

✍ Scribed by Kehoe, M. A. ;Foster, T. J.

Publisher: Springer
Year: 1979
Tongue: English
Weight: 786 KB
Volume: 176
Category: Article
ISSN: 0026-8925
DOI: 10.1007/bf00334302

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✦ Synopsis

Spontaneous tetracycline-sensitive, transfer-deficient mutants of R100-1 were selected and analysed by genetic complementation tests and with the restriction endonuclease EcoR1. While some of the Tets Tra- mutants were caused by a single deletion event which removed the Tetr genes and extended into the neighbouring transfer genes, other mutants were the result of the deletion of the Tetr genes within Tn10 which was accompanied by an inversion of adjacent DNA sequences. A clustering of deletion and inversion endpoints occurred in the traA gene. Some of the transfer genes of R100-1 were assigned to EcoR1 fragments.

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