title: Isozyme variability in species of the genus Drosophila. VIII. The alcohol dehydrogenase polymorphism in North Carolina populations of D. melanogaster.
abstract: Adult Drosophila melanogaster flies collected from populations broadly dispersed over ecological and geographic strata of North Carolina, and over a period of 4 years, were analyzed for alcohol dehydrogenase phenotypes by gel electrophoresis. Gene frequencies in spring-summer-fall field collections were remarkably stable over all strata. Two winter collections exhibited contrasting gene frequency changes. In one case the results are interpreted in terms of long-distance migration from Florida, while the other is explicable by assignment of a causal role to environmental factors which accompany the winter season.
mesh_terms: D000429:Alcohol Oxidoreductases / Q000302:isolation & purification; D000818:Animals; D004331:Drosophila melanogaster / Q000145:classification / Q000201:enzymology*; D004463:Ecology; D005843:Geography; D007527:Isoenzymes / Q000302:isolation & purification; D009657:North Carolina; D011110:Polymorphism, Genetic
chemical_list: D007527:Isoenzymes; D000429:Alcohol Oxidoreductases