Insertion of a P{PdL} element.
PdL2B1PdL2B1 homozygotes are viable. Expression of PdL2B1PdL2B1 during development under the combined control of Tn10\tetRAct5C.T:Hsim\VP16 and doxycycline treatment results in lethality, while this expression only during adulthood leads to a 27 to 29% decrease in life span compared to controls (without doxycycline).
Originally isolated as a line carrying 3 P{PdL} insertions.