Imprinting a determined state into the chromatin of Drosophila

Trends Genet. 1990 Dec;6(12):416-21. doi: 10.1016/0168-9525(90)90303-n.


The Polycomb gene of Drosophila melanogaster is a member of a class of genes involved in the clonal transmission of the repressed state of bomeotic regulatory genes through development. Genetic evidence, and the finding of a molecular similarity between the Polycomb protein and a heterochromatin-associated protein of Drosophila, suggest that this mechanism of repression might be imprinted in the structure of the chromatin, rather than being sustained through the action of diffusible regulatory factors.

Publication types

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

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Chromatin / ultrastructure*
  • Chromosomes / ultrastructure
  • Drosophila / genetics*
  • Gene Expression Regulation*
  • Genes, Homeobox*
  • Molecular Sequence Data


  • Chromatin