The Drosophila JNK pathway controls the morphogenesis of imaginal discs during metamorphosis.

Abstract excerpt

In Drosophila, the Jun-N-terminal Kinase-(JNK) signaling pathway is required for epithelial cell shape changes during dorsal closure of the embryo. In the absence of JNK pathway activity, as in the DJNKK/hemipterous (hep) mutant, the dorsolateral ectodermal cells fail both to elongate and move toward the dorsal midline, leading to dorsally open embryos. We show here that hep and the JNK pathway are required later...

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