title: Analysis of isozyme loci in the face fly, Musca autumnalis DeGeer.
abstract: Vertical polyacrylamide gel electrophoresis was used to resolve enzymes at 50 putative loci in Iowa face flies, a recently arrived, colonizing, Palearctic species. Sixty-two percent of the 50 loci were polymorphic. The mean number of alleles per polymorphic locus was 3.2 +/- 1.38; the mean among all loci was 2.38 +/- 1.62 alleles. The effective number of alleles among 50 loci was 1.4 +/- 0.62. Mean observed and expected heterozygosities for the 50 face fly loci were 0.167 +/- 0.037 and 0.186 +/- 0.031, respectively. Comparison of the electrophoretic data for Musca autumnalis and for M. domestica L. showed similar high levels of gene diversity. A survey of gene diversity at 12 loci among six geographically independent laboratory colonies demonstrated statistically significant genetic differentiation that was probably due to drift after colonization.
authors.affiliation: Department of Entomology, Iowa State University, Ames 50011.
authors.forename: E S
authors.initials: ES
authors.lastname: Krafsur
authors.forename: W C
authors.initials: WC
authors.lastname: Black
mesh_terms: D000818:Animals; D004175:Diptera / Q000201:enzymology / Q000235:genetics*; D004591:Electrophoresis, Polyacrylamide Gel; D005787:Gene Frequency; D005819:Genetic Markers; D014644:Genetic Variation; D007527:Isoenzymes / Q000235:genetics*; D011110:Polymorphism, Genetic; D013045:Species Specificity
chemical_list: D005819:Genetic Markers; D007527:Isoenzymes