Spatial regulation of Antennapedia and bithorax gene expression by the Polycomb locus in Drosophila

Cell. 1986 Mar 14;44(5):739-48. doi: 10.1016/0092-8674(86)90840-8.

Abstract

Transcripts encoded by six of the homeotic lethal complementation groups within the Antennapedia and bithorax gene complexes (ANT-C and BX-C) accumulate primarily in nonoverlapping regions of the embryonic central nervous system (CNS). It has been previously proposed that the maintenance of these selective patterns of expression involve hierarchical cross-regulatory interactions among ANT-C and BX-C loci. Selective expression of the ANT-C and BX-C also involves regulation by a number of unlinked genetic loci, including the Polycomb (Pc) locus. Here we show that the ANT-C and BX-C transcript distribution patterns are dramatically altered in the CNS of Pc- embryos. We discuss these altered patterns of expression in the context of different models for the spatial regulation of ANT-C and BX-C gene expression.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Central Nervous System / embryology
  • Central Nervous System / physiology
  • Drosophila melanogaster / embryology
  • Drosophila melanogaster / genetics*
  • Gene Expression Regulation
  • Genes, Lethal
  • Morphogenesis
  • RNA, Messenger / genetics
  • Thorax

Substances

  • RNA, Messenger