Trans- and cis-acting requirements for blastodermal expression of the head gap gene buttonhead

Ernst A. Wimmer, Marcia Simpson-Brose, Stephen M. Cohen, Claude Desplan, Herbert Jäckle

Research output: Contribution to journalArticle

Abstract

The Drosophila gene buttonhead (btd) encodes a zinc-finger protein related to the human transcription factor Sp1. btd is expressed in the syncytial blastoderm embryo in a stripe covering the anlagen of the antennal, intercalary and mandibular head segments. btd has been characterized as a head gap gene, since these segments are deleted in btd mutant embryos. We report here that the cis-acting elements required for btd head stripe expression are contained in a 1 kb DNA fragment, located about 3 kb upstream of the promoter. The four maternal coordinate systems are necessary for correct btd head stripe expression, likely by acting through the 1 kb cis-acting control region. Expression of the btd head stripe depends on the anterior morphogen encoded by the gene bicoid (bcd). bcd-dependent activation also involves the activity of the morphogens of the posterior and dorsoventral systems, hunchback and dorsal, respectively, which act together to control the spatial limits of the expression domain. Finally, the terminal system takes part in the regulation of btd head stripe expression by enhancing activation at low levels of activity and repression at high levels of activity.

Original languageEnglish (US)
Pages (from-to)235-245
Number of pages11
JournalMechanisms of Development
Volume53
Issue number2
DOIs
StatePublished - 1995

Fingerprint

Head
Genes
Embryonic Structures
Blastoderm
Zinc Fingers
Drosophila
Mothers
DNA
Proteins

Keywords

  • buttonhead
  • Drosophila
  • Gap gene
  • Gene regulation
  • Head development

ASJC Scopus subject areas

  • Developmental Biology
  • Embryology
  • Developmental Neuroscience

Cite this

Trans- and cis-acting requirements for blastodermal expression of the head gap gene buttonhead. / Wimmer, Ernst A.; Simpson-Brose, Marcia; Cohen, Stephen M.; Desplan, Claude; Jäckle, Herbert.

In: Mechanisms of Development, Vol. 53, No. 2, 1995, p. 235-245.

Research output: Contribution to journalArticle

Wimmer, Ernst A. ; Simpson-Brose, Marcia ; Cohen, Stephen M. ; Desplan, Claude ; Jäckle, Herbert. / Trans- and cis-acting requirements for blastodermal expression of the head gap gene buttonhead. In: Mechanisms of Development. 1995 ; Vol. 53, No. 2. pp. 235-245.
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