The ubiquitous snRNA:U6:96Ac promoter drives expression of a single sgRNA (GCACCAACACTACACCGTCG) that targets bsk.
Crispr-Cas9 mutagenesis of bsk by expressing either Spyo\Cas9UAS.Tag:NLS(Unk) or Spyo\Cas9UAS.P2 under the control of Scer\GAL4GMR71G10 and using bskgRNA.pCFD3-3 as a guide, results in frequent mushroom body gamma neuron pruning defects; phenotype is milder when expressing Spyo\Cas9UAS.P2.