Cell type-specific regulation of the Drosophila FMRF-NH2 neuropeptide gene by Apterous, a LIM homeodomain transcription factor

Ronald Benveniste, Stefan Thor, John B. Thomas, Paul H. Taghert

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

We describe the direct and cell-specific regulation of the Drosophila FMRFa neuropeptide gene by Apterous, a LIM homeodomain transcription factor. dFMRFa and Apterous are expressed in partially overlapping subsets of neurons, including two of the seventeen dFMRFa cell types, the Tv neuroendocrine cells and the SP2 interneurons. Apterous contributes to the initiation of dFMRFa expression in Tv neurons, but not in those dFMRFa neurons that do not express Apterous. Apterous is not required for Tv neuron survival or morphological differentiation. Apterous contributes to the maintenance of dFMRFa expression by postembryonic Tv neurons, although the strength of its regulation is diminished. Apterous regulation of dFMRFa expression includes direct mechanisms, although ectopic Apterous does not induce ectopic dFMRFa. These findings show that, for a subset of neurons that share a common neurotransmitter phenotype, the Apterous LIM homeoprotein helps define neurotransmitter expression with very limited effects on, other aspects of differentiation.

Original languageEnglish
Pages (from-to)4757-4765
Number of pages9
JournalDevelopment
Volume125
Issue number23
StatePublished - Dec 1 1998
Externally publishedYes

Fingerprint

FMRFamide
Neuropeptides
Drosophila
Transcription Factors
Neurons
Genes
Neurotransmitter Agents
Homeodomain Proteins
Neuroendocrine Cells
Interneurons
Maintenance
Phenotype

Keywords

  • Apterous
  • Drosophila
  • FMRFamide
  • LIM homeodomain
  • Neuropeptide gene

ASJC Scopus subject areas

  • Anatomy
  • Cell Biology

Cite this

Cell type-specific regulation of the Drosophila FMRF-NH2 neuropeptide gene by Apterous, a LIM homeodomain transcription factor. / Benveniste, Ronald; Thor, Stefan; Thomas, John B.; Taghert, Paul H.

In: Development, Vol. 125, No. 23, 01.12.1998, p. 4757-4765.

Research output: Contribution to journalArticle

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