15-P042 Specification of neural precursor identity in the chelicerate Cupiennius salei and the myriapod Glomeris marginata

Abstract

conserved domains in the neuroectoderm (e.g. dorso-ventral patterning genes) differ as compared to Drosophila (Wheeler etal., 2005). We assume that temporal changes in spatial cues might influence neuroblast identity. This mechanism might have contributed to evolutionary changes in arthropod neurogenesis. We are therefore analysing the expression pattern of homologues of the Drosophila neuroblast identity genes (e.g. segment polarity genes, dorso-ventral patterning genes) during the whole course of neurogenesis in Tribolium.