<i>CSN5</i> or <i>Nedd8</i> mutations have a diverse effect on dendritic branching.

<p>(A) Mosaic clone of a wild-type ddaC neuron marked by GFP. (B) In <i>CSN5^N</i> mutants, ddaC neurons frequently show decreased dendritic branching. (C) A fraction of <i>CSN5^N</i> mosaic clones has increased dendritic branching. <i>CSN5^P</i> mutants demonstrate similar repressed (D) or stimulated (E) dendritic arborization phenotype. (F) Mutations in <i>Nedd8</i> frequently decrease dendritic elaboration. (G) Loss of <i>Nedd8</i> can lead to increased dendritic branching. Scale bar: 50 µm. (H) Quantifications of terminal dendritic ends in wild type, <i>CSN5^N</i>, <i>CSN5^P</i> and <i>Nedd8</i> mutant ddaC neurons. Numbers of dendritic ends in individual neurons are shown instead of average value.