Zygotic caudal regulation by hunchback and its role in abdominal segment formation of the Drosophila embryo.

Abstract excerpt

caudal (cad) is a maternally and zygotically expressed gene in Drosophila whereby the two phases of expression can functionally replace each other. The zygotic expression forms an abdominal and a posterior domain, whereby only the posterior domain has so far been studied with respect to its regulation and function. We show here that the abdominal cad domain is regulated by the hunchback (hb) gradient through...

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