Transduction analysis using leucine requiring mutants of Salmonella typhimurium

Abstract
1. Data is presented in support of the hypothesis that in Salmonella typhimurium the fragments participating in the transduction of a particular linkage group arise by breakages at constant positions in the genome of the donor bacteria.2. Data from three factor transduction experiments are used to construct a linkage map of the leu-araB region which defines not only the relative order of the markers but also the relative distances between them.