Natural behavior polymorphism due to a cGMP-dependent protein kinase of Drosophila.

TitleNatural behavior polymorphism due to a cGMP-dependent protein kinase of Drosophila.
Publication TypeJournal Article
Year of Publication1997
AuthorsOsborne KA, Robichon A, Burgess E, Butland S, Shaw RA, Coulthard A, Pereira HS, Greenspan RJ, Sokolowski MB
JournalScience
Volume277
Issue5327
Pagination834-6
Date Published1997 Aug 8
ISSN0036-8075
KeywordsAnimals, Animals, Genetically Modified, Cyclic GMP, Cyclic GMP-Dependent Protein Kinases, Drosophila melanogaster, Feeding Behavior, Genes, Insect, Larva, Phenotype, Polymorphism, Genetic, Signal Transduction
Abstract

Naturally occuring polymorphisms in behavior are difficult to map genetically and thus are refractory to molecular characterization. An exception is the foraging gene (for), a gene that has two naturally occurring variants in Drosophila melanogaster food-search behavior: rover and sitter. Molecular mapping placed for mutations in the dg2 gene, which encodes a cyclic guanosine monophosphate (cGMP)-dependent protein kinase (PKG). Rovers had higher PKG activity than sitters, and transgenic sitters expressing a dg2 complementary DNA from rover showed transformation of behavior to rover. Thus, PKG levels affected food-search behavior, and natural variation in PKG activity accounted for a behavioral polymorphism.

Alternate JournalScience
PubMed ID9242616
Category: 
Greenspan Laboratory