Su(z)21.a1 is caused by a translocation whose breakpoint maps within the 9 kb SalI restriction fragment.
One copy of Su(z)21.a1 is unable to suppress position effect variegation (PEV) at the w locus caused by In(1)wm4.
One copy of Su(z)21.a1 weakly suppresses the telomeric position effect (TPE) in stocks carrying a variegating P{hsp26-pt-T}39C-5 insertion at the telomere of the left arm of chromosome two.
Su(z)21.a1 can show a strong dominant suppression on telomeric Position Effect Variegation (PEV) in stocks carrying a variegating w+mW.hs allele at the telomeres of the second and third chromosome. Has no effect on pericentric and fourth chromosome insertions.
Isolated on the basis of reverting the dominant z1 eye color suppression associated with Su(z)21. In a z1, wis/Y background, Su(z)21.a1 produces an orange eye colour similar to that found in z1, wis/Y;+/+. The reversion event simultaneously reverted the ability of Su(z)21 to enhance the dominant loss of chaetae phenotype associated with Su(z)2vg62 (Df(2R)vg62) and Su(z)2vgD (Df(2R)vg-D). Heterozygotes with Df(2R)vg-D are viable.
Reverts the Su(z)21 phenotype.
Su(z)21.a1/Su(z)2[+] is a non-enhancer of visible | adult stage phenotype of Marcal1UAS.cBa, Scer\GAL4Tub.PU
Su(z)21.a1/Su(z)2[+] is a non-enhancer of visible | adult stage phenotype of Hsap\SMARCAL1UAS.cBa, Scer\GAL4Bx-MS1096
Su(z)21.a1/Su(z)2[+] is a non-enhancer of visible phenotype of E2f1UAS.cNa, Scer\GAL4Act88F.PD
Su(z)21.a1/Su(z)2[+] is a non-enhancer of visible phenotype of DpUAS.cDa, E2f1UAS.cNa, Scer\GAL4GMR.PU
Su(z)21.a1 is a suppressor of visible phenotype of E2f1RNAi.UAS.cJa, Scer\GAL4GMR.PU
Su(z)21.a1/Su(z)2[+] is a suppressor of visible phenotype of E2f1RNAi.UAS.cJa, Scer\GAL4ptc-559.1
Su(z)21.a1/Su(z)2[+] is a non-suppressor of visible | adult stage phenotype of Marcal1UAS.cBa, Scer\GAL4Tub.PU
Su(z)21.a1/Su(z)2[+] is a non-suppressor of visible | adult stage phenotype of Hsap\SMARCAL1UAS.cBa, Scer\GAL4Bx-MS1096
Su(z)21.a1/Su(z)2[+] is a non-suppressor of visible phenotype of E2f1UAS.cNa, Scer\GAL4Act88F.PD
Su(z)21.a1/Su(z)2[+] is a non-suppressor of visible phenotype of DpUAS.cDa, E2f1UAS.cNa, Scer\GAL4GMR.PU
Su(z)21.a1/Su(z)2[+] is a non-enhancer of wing vein | adult stage phenotype of Marcal1UAS.cBa, Scer\GAL4Tub.PU
Su(z)21.a1/Su(z)2[+] is a non-enhancer of wing vein | adult stage phenotype of Hsap\SMARCAL1UAS.cBa, Scer\GAL4Bx-MS1096
Su(z)21.a1/Su(z)2[+] is a non-enhancer of wing phenotype of E2f1UAS.cNa, Scer\GAL4Act88F.PD
Su(z)21.a1/Su(z)2[+] is a non-enhancer of eye phenotype of DpUAS.cDa, E2f1UAS.cNa, Scer\GAL4GMR.PU
Su(z)21.a1/Su(z)2[+] is a non-enhancer of wing vein | ectopic phenotype of Snr1E1
Su(z)21.a1/Su(z)2[+] is a suppressor of 1st posterior cell phenotype of E2f1RNAi.UAS.cJa, Scer\GAL4ptc-559.1
Su(z)21.a1 is a suppressor of eye phenotype of E2f1RNAi.UAS.cJa, Scer\GAL4GMR.PU
Su(z)21.a1/Su(z)2[+] is a non-suppressor of wing vein | adult stage phenotype of Marcal1UAS.cBa, Scer\GAL4Tub.PU
Su(z)21.a1/Su(z)2[+] is a non-suppressor of wing vein | adult stage phenotype of Hsap\SMARCAL1UAS.cBa, Scer\GAL4Bx-MS1096
Su(z)21.a1/Su(z)2[+] is a non-suppressor of wing phenotype of E2f1UAS.cNa, Scer\GAL4Act88F.PD
Su(z)21.a1/Su(z)2[+] is a non-suppressor of eye phenotype of DpUAS.cDa, E2f1UAS.cNa, Scer\GAL4GMR.PU
Su(z)21.a1/Su(z)2[+] is a non-suppressor of wing vein | ectopic phenotype of Snr1E1
The formation of ectopic wing veins observed in adult flies expressing Marcal1Scer\UAS.cBa under the control of Scer\GAL4tub.PU is not affected by combination with a single copy of Su(z)21.a1.
The formation of ectopic wing veins observed in adult flies expressing Hsap\SMARCAL1Scer\UAS.cBa under the control of Scer\GAL4Bx-MS1096 is not affected by combination with a single copy of Su(z)21.a1.
Complements: Psc1. Complements: PscArp.1.