2 copies of schb.PP cause male lethality.
Causes male specific lethality and activates ectopic Sxl expression in the anterior of male embryos (Parkhurst et al., Cell 63: 1179--1191.)
Female viability is unaffected. Head morphology of males is defective.
schb.PP has lethal | female phenotype, suppressible by E(spl)m8-HLH::hryb
schb.PP has lethal | female phenotype, suppressible by E(spl)m8-HLH::hrybHLH
schb.PP has lethal | female phenotype, suppressible by E(spl)m8-HLH::hryHLH
schb.PP has lethal | female phenotype, suppressible by E(spl)m8-HLH::hryOr
schb.PP has lethal | female phenotype, suppressible by E(spl)m8-HLH::hryOrW.2
schb.PP has lethal | female phenotype, suppressible by E(spl)m8-HLH::hryW
schb.PP has lethal | female phenotype, suppressible by hryΔSPPSS.hb
schb.PP has lethal | female phenotype, suppressible by hryΔWRPW.hb
schb.PP has lethal | male phenotype, suppressible by Xlae\hhb.PD
schb.PP has lethal | male phenotype, non-suppressible by E(spl)m8-HLHhb.PD
schb.PP has lethal | female phenotype, non-suppressible by hryP37N.hb
schb.PP has lethal | female phenotype, non-suppressible by hryP37T.hb
schb.PP has lethal | female phenotype, non-suppressible by hryPNMR.hb
schb.PP has lethal | female phenotype, non-suppressible by hry::scbHLH
schb.PP has lethal | female phenotype, non-suppressible by da::hrybHLH
schb.PP has lethal | female phenotype, non-suppressible by da::hryHLH
schb.PP has lethal | female phenotype, non-suppressible by E(spl)m8-HLHhb.PD
schb.PP has lethal | female phenotype, non-suppressible by E(spl)m8-HLH::hryOrW.1
schb.PP has lethal | female phenotype, non-suppressible by hryΔOrange.hb
schb.PP has lethal | female phenotype, non-suppressible by hryM39L.hb
schb.PP has lethal | female phenotype, non-suppressible by hryM39R.hb
Expression of hhb.PP can rescue male lethality caused by schb.PP. Deletion of the bHLH and orange domains of h render it unable to rescue male lethality, the WRPW domain is not required for rescue. Expression of E(spl)hb.PD cannot rescue male lethality caused by schb.PP.
Expression of Xlae\hhb.PD can rescue male lethality caused by schb.PP.
Parkhurst.
Restores posterior Sxl protein expression in scsisB-1 female embryos. scsisB-1; l(1)schb.PP and sisA1; schb.PP embryos lack posterior Sxl expression.