Control of Drosophila photoreceptor cell fates by phyllopod, a novel nuclear protein acting downstream of the Raf kinase

Cell. 1995 Feb 10;80(3):453-62. doi: 10.1016/0092-8674(95)90496-4.


The phyllopod (phyl) gene regulates the fates of a subset of cells in the developing Drosophila eye; in the absence of phyl function, the R1, R6, and R7 photoreceptors are transformed into additional cone cells, whereas ectopic phyl expression in the cone cell precursors transforms these cells into additional R7 cells. Within this group of cells, phyl expression thus mimics activation of the Raf pathway in its ability to induce photoreceptor rather than cone cell development. Furthermore, the transformation of cone cells into R7 cells in response to Raf activation is both accompanied by and dependent upon ectopic phyl expression. phyl thus represents a possible target gene of the Raf pathway during eye development, controlling the fates of a novel subset of photoreceptors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Cell Differentiation
  • Cloning, Molecular
  • Crosses, Genetic
  • Drosophila / enzymology
  • Drosophila / genetics*
  • Drosophila Proteins*
  • Eye / chemistry
  • Eye / growth & development
  • Gene Dosage
  • Gene Expression Regulation, Developmental*
  • Genes, Insect / genetics
  • Larva
  • Molecular Sequence Data
  • Nuclear Proteins / genetics*
  • Nuclear Proteins / physiology
  • Photoreceptor Cells, Invertebrate / cytology*
  • Photoreceptor Cells, Invertebrate / growth & development
  • Protein-Serine-Threonine Kinases / genetics
  • Protein-Serine-Threonine Kinases / physiology*
  • Proto-Oncogene Proteins / genetics
  • Proto-Oncogene Proteins / physiology*
  • Proto-Oncogene Proteins c-raf
  • RNA, Messenger / analysis
  • Sequence Analysis, DNA
  • Suppression, Genetic


  • Drosophila Proteins
  • Nuclear Proteins
  • Proto-Oncogene Proteins
  • RNA, Messenger
  • phyl protein, Drosophila
  • Protein-Serine-Threonine Kinases
  • Proto-Oncogene Proteins c-raf

Associated data

  • GENBANK/L38294