10kb genomic fragment containing part of upd1 (lacks the transcription start site and most of exon 1).
sisA1, upd1sisC-5/upd1sisC-1, upd1t4.8 has lethal phenotype
sisA[+]/sisA1, upd1sisC-5/upd1sisC-1, upd1t4.8 has lethal phenotype
upd1t5.8 fails to rescue the sex-specific lethality of sisA1 upd1sisC-1/sisA[+] upd1sisC-5 females.
upd1t4.8 fails to rescue upd1unspecified