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American Zoologist 1998 38(6):818-828; doi:10.1093/icb/38.6.818
© 1998 by The Society for Integrative and Comparative Biology
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Changing Patterns of Gene Regulation in the Evolution of Arthropod Morphology1

LISA NAGY2
Department of Molecular and Cellular Biology, University of Arizona Tucson, Arizona 85745

Correspondence: 2E-mail: lnagy{at}u.arizona.edu

SYNOPSIS. What can the comparative study of gene expression patterns during development contribute to the study of phytogeny? I discuss the basic properties of gene networks that function in development, using information gleaned from developmental model systems. Using examples from the analysis of anteroposterior, dorsoventral and proximodistal axis formation, I outline how the gene networks that pattern these three axes of development are linked in evolution. Finally, I discuss the types of analyses necessary to further our understanding of how gene networks function in regulating the evolution of morphology


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