Transcriptomics

Dataset Information

4

FRUM and EcR-regulated expression during Drosophila development


ABSTRACT: In Drosophila, male-specific FRU (FRUM) is required to establish the potential for courtship behaviors, but the downstream effectors of FRUM during development are largely unknown. A microarray-based approach identified genes that are differentially expressed as a consequence of FRUM in pupae, in both whole body and CNS tissues. Genes were also identified that are sex-differentially expressed in CNS tissues. The FRUM-regulated sets were significantly overrepresented with genes also regulated by the ecdysone regulatory pathway. Two EcR isoforms (EcRA and EcRB1) are expressed in FRUM-expressing neurons during distinct periods of metamorphosis. Males with abrogated EcRA function in FRUM-expressing neurons aggressively court other males. Transcriptional profiles of mutants with abrogated EcRA function in the fru circuit demonstrate that EcR and FRUM regulate common gene sets, including the early gene broad. These results demonstrate a novel role for EcR in specifying male courtship behavior through its actions specifically in the FRUM neural circuitry. All microarrays were dual channel with direct comparisons of male versus female, wild type versus mutant, or experimental versus control. For each experiment, four to eight independent biological samples were analyzed using a dye-swap design. Samples consisted of whole body pupae or dissected CNS collected either at 0 hour After Pupal Formation (APF), 48 hour APF, or 0-24 hour adults.

ORGANISM(S): Drosophila melanogaster  

SUBMITTER: Matthew S Lebo  Justin E Dalton  Laura E Sanders  Michelle N Arbeitman  Fengzhu Sun 

PROVIDER: E-GEOD-11752 | ArrayExpress | 2009-09-21

SECONDARY ACCESSION(S): GSE11752PRJNA106043

REPOSITORIES: GEO, ArrayExpress

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Publications

Ecdysone receptor acts in fruitless- expressing neurons to mediate drosophila courtship behaviors.

Dalton Justin E JE   Lebo Matthew S MS   Sanders Laura E LE   Sun Fengzhu F   Arbeitman Michelle N MN  

Current biology : CB 20090730 17


In Drosophila melanogaster, fruitless (fru) encodes male-specific transcription factors (FRU(M); encoded by fru P1) required for courtship behaviors (reviewed in). However, downstream effectors of FRU(M) throughout development are largely unknown. During metamorphosis the nervous system is remodeled for adult function, the timing of which is coordinated by the steroid hormone 20-hydroxyecdysone (ecdysone) through the ecdysone receptor, a heterodimer of the nuclear receptors EcR (isoforms are EcR  ...[more]

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