Insertion lines from this collection were assessed for inclusion in the Gene Disruption Project collection.
A set of mutant stocks derived by insertional mutagenesis using the P-element construct P{PZ}; most lines have a lethal or sterile phenotype. The P{PZ} construct carries a ry[+] visible marker, Ecol\lacZ enhancer trap sequences, and bacterial sequences that allow plasmid rescue.
The insertion site is in the 5' UTR of the orb gene. The orientation of the insertion was not reported.