Selection at the Acid Phosphatase Locus in Drosophila Melanogaster

Abstract

Results of fitness estimates at the acid phosphatase locus in D. melanogaster revealed that the observed gene frequency equilibrium at the locus was maintained by frequency-dependent selection. Selection was due mostly to larva-adult viability. Gene-frequency response on media with substrate (IX-naphthyl acid phosphate) added may have been caused in part by selection at the acid phosphatase locus, although the possibility of a correlated response cannot be excluded.