Imprecise excision of the P{wAR} insertion causing deletion of flanking genomic DNA and part of insertion.
position of lesion based on the site of P{wAR}unkOR20 insertion plus the adjoining XhoI-PstI site, as shown in Figure 4 of FBrf0056221
Nervous system of homozygous embryos at stage 16 and 17 shows no gross abnormalities. Mutant larvae reach the third larval instar approximately one day later that wild type and pupariate three days after wild type. Most developmentally delayed larvae possess one or more amorphous melanotic tumours at various locations within the abdomen. Development stops during the mid-pupal phase.
Strong allele of unk.