Homozygotes are sterile. Progeny derived from mothers or fathers carrying the modified P-element exhibit a modest inhibitory effect of transposition in the soma and some repression of somatic P{hsP} excision events.
Lack of induction of repressing activity could be because heat shock in the eye disk destabilises both the transposase and 66kD protein. Homozygotes of the transposon are sterile but the sterility has not been shown to be due to the transposon itself. Other insertions of the transposons have a wild type phenotype and do not repress transposition of P{hsP}.
Lack of induction of repressing activity could be because heat shock in the eye disk destabilises both the transposase and 66kD protein. Homozygotes of the transposon are sterile but the sterility has not been shown to be due to the transposon itself. Other insertions of the transposons have a wild type phenotype and do not repress transposition of P{hsP}.