Polymorphism at the α-glycerophosphate dehydrogenase locus inDrosophila melanogaster. I. Properties of adult allozymes

✍ Scribed by Stephen Miller; Robert W. Pearcy; Edward Berger

• Publisher: Springer
• Year: 1975
• Tongue: English
• Weight: 602 KB
• Volume: 13
• Category: Article
• ISSN: 0006-2928
• DOI: 10.1007/bf00486013

✦ Synopsis

A biochemical comparison was made between ~-glycerophosphate dehydrogenase allozymes from Drosophila melanogaster. Enzymes extracted from the three major genotypes were indistinguishable in terms of their pH optima and thermal stabilities. Distinctive differences were observed for three parameters; temperature dependence of specific activity, temperature dependence of K,,, and reaction rate constancy over a physiological temperature range. These results are discussed in terms of a model of balancing selection and the existence of spatial and temporal allele frequency clines in natural populations.