EVIDENCE OF COMPLEX LOCI IN SALMONELLA

Abstract

By the use of transduction tests, phenotypically similar auxotrophic mutants of Salmonella can be separated into well-defined groups, and this grouping corresponds with the grouping arrived at by studies of their biochemical blocks. It is assumed that each such group represents a gene locus and that different members of a group are "nonidentical alleles (pseduoalleles)," which have originated through mutations occurring at different sites in a gene locus.