Insertion of a P{PdL} element.
PdL35B1PdL35B1 homozygotes are lethal. Expression of PdL35B1PdL35B1 during development under the combined control of Tn10\tetRAct5C.T:Hsim\VP16 and doxycycline treatment results in a fully penetrant blistered wing phenotype in adults, while this expression only during adulthood leads to a small but significant decrease in life span compared to controls (without doxycycline).
Originally isolated as a line carrying 4 P{PdL} insertions.