Pan-neural expression of drlScer\UAS.cCa, under the control of Scer\GAL4elav-C155 induces the partial or complete loss of adult mushroom body orthogonal lobes. The severity of this gain-of-function phenotype is dosage-dependent since the percentage of mushroom bodies affected increases with the number of copies of the drlScer\UAS.cCa transgene. The complete absence of lobes is only seen when four copies of the drlScer\UAS.cCa transgene are present.
When drlScer\UAS.cCa is driven by Scer\GAL4eg-Mz360 expressing interneurons switch their projections to the anterior commissure in all segments, compared to one cluster projecting to the anterior and one to the posterior commissure.
When expression is driven by Scer\GAL47B no deleterious effect on learning scores can be detected.
Expression of three copies of drlScer\UAS.cCa under the control of Scer\GAL4eg-Mz360 results in all the eg-expressing posterior commissure axons switching their projections and crossing the midline in the anterior commissure, forming a bundle distinct from the normal anterior commissure bundle.
Expression of drlScer\UAS.cCa under the control of Scer\GAL4eg-Mz360 in embryos has no effect on the eg-expressing neurons that normally cross the midline in the anterior commissure. However, the eg-expressing neurons which normally cross the midline in the posterior commissure switch their projections to the AC in all segments. This phenotype is dose-dependent. Expression of drlScer\UAS.cCa under the control of Scer\GAL4ap-md52 causes the growth cones of ap-expressing neurons to stall as they approach the level of the posterior commissure, but the neurons remain ipsilateral as in wild-type embryos.
Scer\GAL4D82 induced expression of P{UAS-drl} in drlR343 embryos partially rescues the 'bypass' phenotype.
Scer\GAL4eg-Mz360, drlUAS.cCa has abnormal neurophysiology phenotype, suppressible by Wnt5D7
drlUAS.cCa/Scer\GAL4elav.PU is a suppressor of abnormal learning | dominant | maternal effect phenotype of Ube3aunspecified
Scer\GAL4ap-md52, commUAS.cKa, drlUAS.cCa has abnormal neuroanatomy phenotype
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-enhanceable by Wnt4EMS23
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-enhanceable by dsh3
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-enhanceable by fz15/fz2C1
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-enhanceable by wgunspecified
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, suppressible by Wnt5D7
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-suppressible by Wnt4EMS23
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-suppressible by dsh3
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-suppressible by fz15/fz2C1
Scer\GAL4eg-Mz360, drlUAS.cCa has interneuron phenotype, non-suppressible by wgunspecified
Scer\GAL4ap-md52, commUAS.cKa, drlUAS.cCa has embryonic ventral nervous system & embryonic thoracic segment phenotype
Expression of drlScer\UAS.cCa under the control of Scer\GAL4elav.PU rescues the learning defects seen in flies which have a maternally inherited null mutation of Ube3a.
The interneuron phenotype seen in drlScer\UAS.cCa, Scer\GAL4eg-Mz360 animals is suppressed by the addition of Wnt5D7. The addition of wgunspecified, Wnt4EMS23, or dsh3 has no effect on the interneuron phenotype seen in drlScer\UAS.cCa, Scer\GAL4eg-Mz360 animals. The addition of fz15 and fz2C1 has no effect on the interneuron phenotype seen in drlScer\UAS.cCa, Scer\GAL4eg-Mz360 animals.
Expression of commScer\UAS.cKa under the control of Scer\GAL4ap-md52 causes ap-expressing neurons to cross the midline, in contrast to wild type. Thoracic-specific ap-expressing neurons cross in the posterior commissure (PC), whereas other ap-expressing neurons cross in the anterior commissure (AC). Co-expression of drlScer\UAS.cCa switches the projections of all thoracic-specific ap-expressing neurons from the PC to the AC.
drlUAS.cCa/Scer\GAL47B partially rescues drlexc21
drlUAS.cCa/Scer\GAL47B partially rescues drl2
drlUAS.cCa/Scer\GAL47B partially rescues drl2/drlR343
drlUAS.cCa/Scer\GAL4c739 partially rescues drl2/drlR343
drlUAS.cCa/Scer\GAL4D82 partially rescues drlR343
drlUAS.cCa/Scer\GAL4sr-md710 fails to rescue drlRed2
drlUAS.cCa/Scer\GAL4GH146 fails to rescue drlR343
drlUAS.cCa/Scer\GAL47B fails to rescue drlP1
Expression of drlScer\UAS.cCa under the control of Scer\GAL4Mef2.PR rescues the lateral transverse muscle attachment defects seen in drlRed2 mutant stage 16 embryos. No rescue is seen when drlScer\UAS.cCa is expressed under the control of Scer\GAL4sr-md710.
Expression of drlScer\UAS.cCa driven by Scer\GAL4GH146 fails to restore the DA1 position phenotype found in drlR343 mutant brains.
The salivary gland guidance defects of drlR343 embryos are fully rescued by expression of drlScer\UAS.cCa under the control of Scer\GAL4fkh.PZ.
Pan-neural expression of two copies of drlScer\UAS.cCa under the control of Scer\GAL4elav-C155 rescues the phenotype of drl2/drlR343, with 68% of the mushroom bodies reverting to a wild-type phenotype. Pan-neural expression of drlScer\UAS.cCa, under the control of Scer\GAL4elav-C155 in results in 16% of the mushroom bodies remaining mutant and 16% displaying a phenotype identical to the gain-of-function phenotype. Pan-neural expression of drlScer\UAS.cCa, under the control of Scer\GAL4elav-C155 in drl2/drlR343 mutants results in 16% of the mushroom bodies remaining mutant and 16% displaying a phenotype identical to the gain-of-function phenotype.
The mushroom body and central complex defects of drl2/drlR343 flies are almost completely rescued by drlScer\UAS.cCa expressed under the control of Scer\GAL47B. The mushroom body and central complex defects of drl2/drlR343 flies are partially rescued by drlScer\UAS.cCa expressed under the control of Scer\GAL4c739. The mushroom body and central complex defects of drlP1/drlP1 flies are completely rescued by drlScer\UAS.cCa expressed under the control of Scer\GAL47B.