THE EFFECTS OF GLUCOSAMINE HYDROCHLORIDE ON THE DEVELOPMENT OF DROSOPHILA MELANOGASTER

Abstract

A high proportion of abnormal pupae were obtained after feeding glucosamine hydrochlor-ide to 3d instar larvae from 2 strains of D. melanogaster (the OreR wild type strain and the tuw mutant straia). The characteristic feature of the abnormality was the retention of the cephalic structures within the thorax, thus suggesting the use of glucosamine hydrochloride as a phenocopic agent to produce individuals resembling the recessive lethal "cryptocephal".