Development Genes and Evolution

, Volume 214, Issue 1, pp 43–46 | Cite as

Evidence for Notch-mediated lateral inhibition in organizing butterfly wing scales

Short Communication

Abstract

Here I present gene expression data that implicate a Notch-mediated lateral inhibition process in the spatial organization of butterfly wing scales. During early pupal development the receptor molecule Notch is expressed in a grid-like pattern in the wing epithelium, resulting in parallel rows of uniformly spaced cells with low Notch expression. Previous work has shown that these low-Notch cells express a homolog of the achaete-scute proneural transcription factors and develop into scales. All of these observations are consistent with the Drosophila model of Notch-mediated bristle determination and support the hypothesis that bristles and scales share an underlying patterning mechanism.

Keywords

Heliconius Bristle Achaete-scute Evolution Development 

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  1. 1.Department of Molecular and Cellular BiologyUniversity of ArizonaTucsonUSA

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