Contains a truncated Dcp1 sequence which produces a 22kDa protein (the same Dcp1 sequence is present in both P{Dcp1.T3} and P{Dcp1.T5}).

P{Dcp1.T3} rescues the lethality of P{lArB}Dcp1^b53 animals, however, the rescued flies show partial female sterility with a typical posterior group embryonic phenotype.

P{Dcp1.T5} rescues the lethality of P{lArB}Dcp1^b53 animals, but the rescued females show a partial female sterility.

Dcp1^b53/Dcp1^b53 ; Dcp1^tT3 individuals show a partial female sterile phenotype, with 60% of the embryos failing to hatch. Among the unhatched embryos, more than 90% show a typical posterior group phenotype, and the remaining 10% have a minor posterior group phenotype. In addition, the pole cells are reduced in number or totally missing.