Cite as: Cold Spring Harb. Protoc.; 2008; doi:10.1101/pdb.prot5068

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Whole-Mount In Situ Hybridization of Spider Embryos

Nikola-Michael Prpic1,2, Michael Schoppmeier1,3, and Wim G.M. Damen1,4

1Institute for Genetics, Evolutionary Genetics, University of Cologne, 50674 Köln, Germany

2 Present address: Georg-August-Universität, Johann-Friedrich-Blumenbach-Institut für Zoologie und Anthropologie, Abteilung Entwicklungsbiologie, GZMB, D-37077 Göttingen, Germany

3 Present address: Friedrich-Alexander University Erlangen, Institute for Biology, Department of Developmental Biology, D-91058 Erlangen, Germany

4Corresponding author (damen{at}uni-koeln.de)


INTRODUCTION

The spider Cupiennius salei, commonly known as the American wandering spider, is a particularly useful laboratory model for embryological studies because of the availability of tools to study and manipulate its embryonic development. Cupiennius is used to study axis formation, segmentation, appendage development, neurogenesis, and silk production. These studies contribute to our understanding of the evolution of these processes, but they also help us to understand the origin and diversification of evolutionary novelties. Comparisons between spiders and insects can show the degree of conservation and divergence of developmental mechanisms during arthropod evolution. Any embryological feature conserved between spiders and insects is likely to represent an ancestral feature for arthropods. Comparative molecular embryological work in insects and spiders should eventually allow us to define a molecular archetype for the phylum Arthropoda. This in itself will be a necessary cornerstone for comparing the different metazoan phyla, including chordates. This protocol describes the detection of transcripts in fixed C. salei embryos using whole-mount in situ hybridization.


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Related Article

The American Wandering Spider Cupiennius salei
Nikola-Michael Prpic, Michael Schoppmeier, and Wim G.M. Damen
Cold Spring Harb Protoc 2008: 103. [Abstract] [Full Text]

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