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Genetic locus determining resistance to phage BF23 and colicins E1, E2 and E3 in Escherichia coli*

Published online by Cambridge University Press:  14 April 2009

Paula Jasper
Affiliation:
Committee on Molecular Biology, Washington University St Louis, Missouri 63130
Eleanor Whitney
Affiliation:
Committee on Molecular Biology, Washington University St Louis, Missouri 63130
Simon Silver
Affiliation:
Committee on Molecular Biology, Washington University St Louis, Missouri 63130
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Summary

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The gene for resistance to phage BF23 and colicins E1, E2 and E3, bfe, was mapped by a combination of conjugation and transduction crosses. Co-transduction of bfe was found with markers in the region between 76 and 79 min on the Escherichia coli genetic map. The highest frequency of co-transduction was found with argH (47%). Three-factor transductional crosses showed unambiguously that bfe lies between argH and supM, at about 77·5 min on the map.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1972

References

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