Drosophila Embryo: Maternal Interactions in Specification of the Anterior–Posterior Axis


In Drosophila, the anterior–posterior axis of the body plan is established during egg development by maternally expressed molecules.

Keywords: RNA localization; translational control; intercellular signalling; bicoid; nanos

Figure 1.

Stage 10 egg chamber expressing a Vas–green fluorescent protein (GFP) fusion protein. Vas accumulates in particles surrounding the nurse cell nuclei (ncn) and in the pole plasm (pp) at the posterior of the oocyte (oo). Photograph courtesy of S. Styhler, McGill University.

Figure 2.

Cuticle preparation of a bicaudal embryo, consisting of a mirror‐image duplication of posterior pattern elements and lacking anterior pattern elements. This embryo was produced by a Bic‐C mutant female, a mutation that results in premature unlocalized translation of osk.



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Further Reading

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van Eeden F and St Johnston D (1999) The polarisation of the anterior–posterior and dorsal–ventral axes during Drosophila oogenesis. Current Opinion in Genetics and Development 9: 396–404.

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How to Cite close
Lasko, Paul(Mar 2003) Drosophila Embryo: Maternal Interactions in Specification of the Anterior–Posterior Axis. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1038/npg.els.0001503]