The dorsal protein is distributed in a gradient in early drosophila embryos

Ruth Steward, Susan B. Zusman, Leslie H. Huang, Paul Schedl

Research output: Contribution to journalArticlepeer-review

104 Scopus citations


dorsal is one of the maternally active dorsal-ventral polarity genes of Drosophila and is closely related to the vertebrate proto-oncogene c-rel. Genetic experiments suggest that dorsal represents one of the last (if not the last) steps in the maternal pathway involved in establishing dorsal-ventral polarity in the early embryo. Even though the dorsal RNA is uniformly distributed in the embryo, we have found that the dorsal protein is specifically localized in peripheral nuclei of syncytial and cellular blastoderm stage embryos, and it is distributed in a ventral-to-dorsal gradient. These findings suggest possible mechanisms for how the dorsal protein may communicate maternal positional information to the zygotic genome.

Original languageEnglish (US)
Pages (from-to)487-495
Number of pages9
Issue number3
StatePublished - Nov 4 1988

All Science Journal Classification (ASJC) codes

  • General Biochemistry, Genetics and Molecular Biology


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