FLP-mediated recombination between the two progenitor insertions has resulted in the deletion of the genomic sequence between them.
Insertion site of PBac{WH}pigsf08054 (one end of FLP-mediated deletion)
Heterozygous Df(1)f08054-d09974 mutant females exhibit a dilated cardiomyopathy phenotype, including an enlarged end-systolic dimension (ESD) and a decreased fractional shortening (FS) compared to controls. End diastolic dimension (EDD) is comparable to controls. Homozygous Df(1)f08054-d09974 is lethal.