Studies on the Polymorphism of alpha-Esterase activity in a few members of Nasuta subgroup (genus: Drosophila)

Abstract

The polyacrylamide gel electrophoretic technique was used to assay the activity of alpha-esterases in various members of D. nasuta subgroup. Five zones of activity designated as ESTA to E were recognized. Further 1to5 bands in each zone were observed in these species under study. Both similarities and dissimilarities with regard to the degree of variation in the isozymes compared with the presumed degree of relationship established by cytological and hybridization studies are discussed.