The expression of Sp1dsRNA.Scer\UAS under the control of Scer\GAL4ap.PU results in the absence of the joint between tarsal segments 4 and 5, with consequent segment fusion.
No defects in dendrite pruning of ddaC dorsal dendritic arborising neurons are seen 18 hours after puparium formation in animals expressing Sp1dsRNA.Scer\UAS under the control of Scer\GAL4ppk.1.9.
Co-expression of Sp1dsRNA.Scer\UAS, Sp1GD4097 and Dcr-2Scer\UAS.cDa under the control of Scer\GAL4dac-p7d23 (restricted to second instar stage onwards using Scer\GAL80ts.αTub84B) results in a strong reduction in the size of the medial part of the leg.
Co-expression of Sp1dsRNA.Scer\UAS, Sp1GD4097 and Dcr-2Scer\UAS.cDa under the control of Scer\GAL4Dll-em212 (restricted to second instar stage onwards using Scer\GAL80ts.αTub84B) results in a strong reduction in the size of the distal part of the leg.
Co-expression of Sp1dsRNA.Scer\UAS, Sp1GD4097 and Dcr-2Scer\UAS.cDa under control of Scer\GAL4btd-MD808 (restricted to second instar stage onwards using Scer\GAL80ts.αTub84B) results in loss of the antennal a1 and a2 segments.
Co-expression of Sp1dsRNA.Scer\UAS, Sp1GD4097 and Dcr-2Scer\UAS.cDa under control of Scer\GAL4btd-MD808 from embryogenesis onwards results in a reduction in the size of the entire leg, from coxa to the distal tip.
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808 has tarsal segment phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808, btdRNAi.UAS has tarsal segment | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808/btdRNAi.UAS has tarsal segment | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808/btdRNAi.UAS has leg | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808/btdRNAi.UAS has third segment of antenna | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808/btdRNAi.UAS has second segment of antenna | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808/btdRNAi.UAS has first segment of antenna | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808, btdRNAi.UAS has leg | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808, btdRNAi.UAS has third segment of antenna | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808, btdRNAi.UAS has second segment of antenna | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808, btdRNAi.UAS has first segment of antenna | heat sensitive phenotype
Scer\GAL4btd-MD808, Sp1RNAi.UAS, btdMD808, btdRNAi.UAS has tarsal segment phenotype
When Sp1dsRNA.Scer\UAS is expressed in a btdMD808 background (driven by the Scer\GAL4btd-MD808 aspect of the P{GawB}btdMD808 insertion), at most some reduction in the tarsus is seen in some mutant legs. When both btddsRNA.Scer\UAS and Sp1dsRNA.Scer\UAS are expressed in a btdMD808 background (at 29oC) and driven by the Scer\GAL4btd-MD808 aspect of the P{GawB}btdMD808 insertion), the animals are unable to hatch and the antennae and legs are affected in all cases, though to different extents. Segments I and II of the tarsus are often reduced. Leg segments are reduced in size and often fused. When these flies are grown at 17oC almost no alteration is seen.