Insertion lines from this collection were assessed for inclusion in the Gene Disruption Project collection.
A set of X chromosome mutant stocks derived by insertional mutagenesis using the P-element construct P{lacW}; most lines have a lethal or semi-lethal phenotype. The P{lacW} construct carries a w+mC mini-white visible marker, Ecol\lacZ enhancer trap sequences, and bacterial sequences that allow plasmid rescue (FBrf0049800).
Originally isolated in line containing multiple insertions.
No longer thought to be associated with multiple insertions; revised cytology.