A Genetic and Cytogenetic Analysis of the Region Surrounding the Lsp-1 beta-Gene in DROSOPHILA MELANOGASTER.

The region surrounding the gene coding for the beta-polypeptide (21D-22C) of the major Drosophila melanogaster larval serum protein, LSP-1, has been studied in detail. Seven new gamma-ray-induced deficiencies of the region have been used, together with the two extant deficiencies, to map the position of the beta-gene and of the 55 newly induced ethyl methanesulfonate mutants uncovered by one of the largest deficiencies. No lethal mutation of the beta-gene was found.