Zymogram analyses suggested the existence of two autosomal codominant alleles each at loci controlling the production of tetrazolium oxidase (To1) and octanol dehydrogenase (Odh1) in Texas house flies; an additional variant of the To1 locus was detected in a population from South Dakota. The allozymes of both systems may be dimeric as indicated by the presence of possible heteropolymers in flies heterozygous for To1 and Odh1 allels. Apparent nonsegregating isozymes of To and Odh (To2 and Odh2) were also noted in the zymograms of Texas flies. Some banding forms in the Odh gels could not be interpreted genetically.

Alcohol Oxidoreductases↗

PubMedDate not supplied

Esterases in the house fly. Polymorphisms and inheritance patterns.

Polyacrylamide gel electrophoresis was used to examine the variability and inheritance of esterases in five strains of the house fly, Musca domestica L. Individual zymograms exhibited 8 to 15 bands that could be assigned to one of five zones designated as A through E from anode to cathode. Correlations of P1-F1 banding patterns indicated the existence of at least 3 different loci in zone A. 2 each in zones B and C, and 4 in zone D; no clear inheritance patterns were discernable for the bands of zone E. Only the Es-5 locus of zone C was monomorphic in all of the strains studied. Eight loci possessed null alleles and codominant alleles were detected at six loci. The results suggest that esterases should prove useful for measuring relationships among fly populations or for various studies of population dynamics.

Alleles↗