Mutation is due to a 9kb deletion in the 5' region of the ey gene.
Homozygous eyJ5.71 mutant escaper adults are not headless.
20% of mutant flies show a 50-75% reduction in the size of the eye, and 80% of mutant flies show a 75-100% reduction in the size of the eye.
Homozygotes show 81% lethality. Eyes are reduced in size in homozygotes; 80% have eyes that are 0-25% of wild-type size and 20% have eyes that are 25-50% of wild-type size. eyJD/eyJ5.71 flies show 72% lethality. Eyes are reduced in size in eyJD/eyJ5.71 flies; 22% have eyes that are 0-25% of wild-type size, 72% have eyes that are 25-50% of wild-type size, 6% have eyes that are 50-75% of wild-type size and 0% have eyes that are 75-100% of wild-type size. eyJD/eyJ5.71 flies show severe mushroom body and central complex defects. Eyes are reduced in size in eyD1Da/eyJ5.71 flies; 43% have eyes that are 0-25% of wild-type size, 14% have eyes that are 25-50% of wild-type size, 38% have eyes that are 50-75% of wild-type size and 5% have eyes that are 75-100% of wild-type size. eyD1Da/eyJ5.71 flies show severe mushroom body and central complex defects.
No defects are seen in the embryonic central nervous system.
Expression of eyScer\UAS.ΔHD when driven by Scer\GAL4dpp.blk1 in a eyJ5.71 background leads to ectopic eyes.
eyJ5.71 has lethal | pupal stage phenotype, suppressible by toyUAS.cCa/Scer\GAL4toy1
eyJ5.71 has eye phenotype, suppressible by toyUAS.cCa/Scer\GAL4toy1
eyJ5.71 has eye phenotype, suppressible by toyUAS.cCa/Scer\GAL4ey.PH
Scer\GAL4dpp.blk1, eyJ5.71/eyJ5.71 is a non-suppressor of eye | ectopic phenotype of toyΔHD.UAS
Scer\GAL4dpp.blk1, eyJ5.71/eyJ5.71 is a non-suppressor of eye | ectopic phenotype of Mmus\Pax6UAS.cHa
Scer\GAL4dpp.blk1, eyJ5.71/eyJ5.71 is a non-suppressor of eye | ectopic phenotype of toyUAS.cCa
Expression of toyScer\UAS.cCa under the control of Scer\GAL4toy1 significantly suppresses the lethality seen in eyJ5.71 mutants, raising the fraction of homozygous adults from 12% to 26.8% at 18[o]C. The compound eyes of eyJ5.71 homozygotes are fully restored by one copy of toyScer\UAS.cCa.
The ectopic eyes seen in flies in which Scer\GAL4dpp.blk1 drives expression from toyScer\UAS.cCa, toyΔHD.Scer\UAS or Mmus\Pax6Scer\UAS.cHa are not suppressed by eyJ5.71/eyJ5.71.
eyJ5.71 is rescued by eyUAS.cHa/Scer\GAL4ey.PH
eyJ5.71 is rescued by eyΔHD.UAS/Scer\GAL4ey.PH
Embryonic and pupal lethality developmental delay, eye phenotypes and male sterility due to eyJ5.71/eyJ5.71 are all rescued by ey+t.p6. However, female sterility is not. When somatic clones lacking ey+t.p6 are induced in the late second or early third instar, eyes carrying these clones appear normal.