title: Drosophila clock mutations affect the morphology of a brain neurosecretory cell group.
abstract: Mutations that eliminate circadian rhythmicity in two species of Drosophila affect the location of cells in a neurosecretory cell group. This is the first example of mutations which affect the morphology of an identifiable cell group in the Drosophila brain.
mesh_terms: D000818:Animals; D001921:Brain / Q000648:ultrastructure*; D002940:Circadian Rhythm; D004330:Drosophila / Q000235:genetics*; D005260:Female; D008297:Male; D009154:Mutation; D009490:Neurosecretory Systems / Q000648:ultrastructure*