Correlation between map position and the phenootype of Cti mutants in the C cistron of Rhizobium meliloti temperate phage 16-3

Dudás, Brigitta and Orosz, László (1980) Correlation between map position and the phenootype of Cti mutants in the C cistron of Rhizobium meliloti temperate phage 16-3. Genetics, 96 (2). pp. 321-329. ISSN 0016-6731 (print), 1943-2631 (online)

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Abstract

Nine temperature-sensitive clear mutations (Cti) in the C cistron (coding for the repressor protein) of Rhizobium meliloti temperate phage 16-3 were characterized according to the inductive temperature, the immunity of cells lysogenic for these mutant phages to superinfection by homoimmune weak virulent mutants, the phenotype of double-ti mutants and interallelic complementation. The results indicate that mutations of similar phenotypic expression are clustered on the genetic map. Furthermore, it seems probable that the C cistron of the original phage 16-3 is identical to that of the independently isolated phage strain 36.

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