A conserved endocrine mechanism controls the formation of dauer and infective larvae in nematodes.

Abstract excerpt

Under harsh environmental conditions, Caenorhabditis elegans larvae undergo arrest and form dauer larvae that can attach to other animals to facilitate dispersal. It has been argued that this phenomenon, called phoresy, represents an intermediate step toward parasitism. Indeed, parasitic nematodes invade their hosts as infective larvae, a stage that shows striking morphological similarities to dauer larvae....

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