hypomorphic allele - genetic evidence
Insertion of a P-element carrying a dpn promoter-Ecol\lacZ fusion about 170bp within the 5' end of the transcription unit.
lethal (with sogP129D)
lethal | recessive
lethal - all die during embryonic stage | recessive
some die during embryonic stage | recessive
visible
embryonic/first instar larval cuticle
posterior crossvein (with sogP129D)
wing vein
Only 12% of sogP129D/sogP1 transheterozygotes survive to adulthood and 46% of these exhibit various degrees of loss of the posterior crossvein.
Clones that span the wing veins cause the vein to meander about their normal trajectories and vary in thickness.
Hemizygous embryos die with a cuticle phenotype.
Excision of the P-element reverts the phenotype to wild type. sogP1 allows some rescue haplo-insufficiency of dpp.
Excision of the P-element reverts the phenotype to wild type. sogP1 allows some rescue haplo-insufficiency of dpp.