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Clear plaque mutation sites linked to the immI region of the Salmonella phage P22

Published online by Cambridge University Press:  14 April 2009

Hermann H. Prell ,
Johanna M. Auer  and
Jiri Soška
Hermann H. Prell
Affiliation:
Abt. für Molekulare Genetik der Gesellschaft für Strahlen- und Umweltforschung mbH München in Göttingen, D-3400 Göttingen, Federal Republic of Germany
Johanna M. Auer
Affiliation:
Abt. für Molekulare Genetik der Gesellschaft für Strahlen- und Umweltforschung mbH München in Göttingen, D-3400 Göttingen, Federal Republic of Germany
Jiri Soška
Affiliation:
Institute of Biophysics, Czechoslovak Academy of Sciences, Brno 12, ČSSR
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Summary

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A complete genetic map has been established for the P22 clear plaque forming mutations cir4-l, cir5-l and cir6-l. These are located within or closely linked to the immI region of P22 and represent a new class of clear plaque forming mutants located outside and rather distant from the immC region. They were mapped with respect to the markers mnt, vy and ant of the immI region and to genes 16 and 9 which span it. The three cir mutations complement each other and – with one possible exception – the cl, c2 and c3 mutations of the immC region. P22 cir6-l – like P22 cir5-l (Harvey et al. 1981) – is suppressed by the ant−am19 allele, whereas P22 cir4-l is not. The results are discussed in terms of the regulation of early ant expression.

Type
Research Article
Information
Genetics Research , Volume 42 , Issue 3 , December 1983 , pp. 267 - 283
Copyright
Copyright © Cambridge University Press 1983

References

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