Coevolution of the glucose dehydrogenase gene and the ejaculatory duct in the genus drosophila

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The glucose dehydrogenase gene (Gld) in Drosophila melanogaster exhibits a unique spatial and temporal pattern of expression. GLD expression switches from a non-sex-limited state at the pupal stage to a male-limited state at the adult stage. At the adult stage, the enzyme is restricted to the ejaculatory duct. Within the genus Drosophila, the ejaculatory duct has undergone a simple morphological divergence. In order to determine whether correlated changes in GLD expression had occurred, GLD activity during the pupal and adult stages was determined for several Drosophila species. It was found that virtually all of the species exhibit pupal GLD activity, whereas only those species with an expanded ejaculatory duct express male-limited GLD. The results of interspecific genital imaginal disc transplantation experiments indicate that the expanded morphology and GLD expression do not require any species- or sex-specific diffusible factors. An apparent regulatory polymorphism exists within the D. takahashii species with respect to male-limited GLD expression.

Original languageEnglish (US)
Pages (from-to)141-149
Number of pages9
JournalMolecular biology and evolution
Volume2
Issue number2
StatePublished - Jan 1 1985

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

Fingerprint Dive into the research topics of 'Coevolution of the glucose dehydrogenase gene and the ejaculatory duct in the genus drosophila'. Together they form a unique fingerprint.

  • Cite this