Abstract
The salt marsh horse fly, Tabanus nigrovittatusMacquart, exhibits two nonoverlapping daily periods of hovering and mating activity, which are correlated with different environmental temperatures. Allelic and genotypic frequencies of hovering males collected during the two periods were compared by electrophoresis of three polymorphic enzyme loci. Approximately 26% of early-hovering males possessed a Pgmallozyme that was absent in our sample of late-hovering males. However, based on other allozyme loci, we found no evidence for reproductive isolation between early and late hoverers. All the genetic data are consistent with the hypothesis that the Pgmpolymorphism is associated with behaviorally and physiologically distinct groups of males that, by all other criteria, form a single Mendelian population.
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Schutz, S.J., Gaugler, R. & Vrijenhoek, R.C. Genetic variability associated with hovering time inTabanus nigrovittatus Macquart (Diptera: Tabanidae). J Insect Behav 3, 579–587 (1990). https://doi.org/10.1007/BF01052329
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DOI: https://doi.org/10.1007/BF01052329