Imprecise excision of the P{bluetail} element, deleting sequences distal to the site of the P{bluetail} insertion.
visible | recessive
abdominal tergite 6 | male
Approximately 1 in 40 homozygous males lack small patches of the 6th tergite. The penetrance of this phenotype is increased to approximately 10% in combination with Abd-BSz and is strongly enhanced by Df(3R)P9.