Imprecise excision of the progenitor insertion, resulting in a 1452bp deletion that removes almost the entire prel open reading frame.
dendrite & dorsal multidendritic neuron ddaC | somatic clone
mitochondrion & dorsal multidendritic neuron ddaC | somatic clone
prel1 mutant third instar larvae display fragmentation of mitochondria in the cell body and shortening of dendritic arbors in the class IV ddaC neurons, the reduction of dendritic arbor is also observed in class I ddaE and class III ddaA neurons although the phenotype in these two neuronal classes is much weaker.
Homozygotes die as early larvae.
The density of mitochondria (assayed by the expression of markers with a mitochondrial targeting signal) is significantly reduced in both axons and dendrites of homozygous ddaC neuron clones compared to controls. The mitochondria appear to be fragmented in the mutant neurons.
Homozygous ddaC neuron clones have shorter, smaller and much less-branched dendritic arbors compared to control neurons. The terminal branches tend to be shorter than those of wild-type neurons, making the mutant distal dendrites appear fuzzy. Some detached branches are seen in the mutant arbor, with the breakages occurring more frequently in the proximal area of the arbor than in the distal area. No axonal breakage (at least not close to the cell body) is seen in the mutant neurons.
prel1 has abnormal neuroanatomy | third instar larval stage phenotype, suppressible | partially by PPP1R15UAS.cMa/Scer\GAL4ppk.PU
prel1 has abnormal neuroanatomy | somatic clone phenotype, suppressible by BuffyUAS.cQa/Scer\GAL4ppk.1.9
prel1 has abdominal dorsal multidendritic neuron ddaC | third instar larval stage phenotype, suppressible | partially by PPP1R15UAS.cMa/Scer\GAL4ppk.PU
prel1 has dendrite | third instar larval stage phenotype, suppressible | partially by PPP1R15UAS.cMa/Scer\GAL4ppk.PU
prel1 has dendrite & dorsal multidendritic neuron ddaC | somatic clone phenotype, suppressible by BuffyUAS.cQa/Scer\GAL4ppk.1.9
The shortening of class IV ddaC dendritic arbor characteristic for prel1 third instar larvae can be significantly mitigated by expression of PPP1R15Scer\UAS.cMa under the control of Scer\GAL4ppk.PU.
Expression of BuffyScer\UAS.cQa under the control of Scer\GAL4ppk.1.9 suppresses the abnormal morphology of the dendritic arbors of prel1 homozygous ddaC neuron clones.
prel1 is rescued by Scer\GAL4da.G32/prelUAS.Tag:HA