A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\veloLL05207

General Information
SymbolDmel\veloLL05207SpeciesD. melanogaster
NameFlyBase IDFBal0270270
Feature typealleleAssociated geneDmel\velo
Allele class
MutagenpiggyBac transposase
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Description
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FB2013_03
FB2013_02
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Allele class
Mutagen
Mutations Mapped to the Genome
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Location
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Associated Sequence Data
DDBJ /
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DNA sequence
Protein sequence
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Progenitor genotype
Nature of the lesion
Statement
Reference
PBac{SAstopDsRed}LL05207 is inserted in the first intron of the long transcript of velo, 490bp upstream of the translational start site of the long transcript and 30bp upstream of the translational start site of the short transcript, respectively.
Caused by insertion
Cytology
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Statement
Reference
velo[LL05207] mutants exhibit projection neuron dendrite targeting defects. velo[LL05207] mutant neuroblast clones exhibit several defects. First, the number of neurons is reduced from an average of 35 ad projection neurons in wild-type to 5 neurons in velo[LL05207] mutant clones. Second, the overall dendritic mass is reduced and disorganised. Third, dendrites aberrantly innervate the wrong glomeruli within the antennal lobe, or ectopically project outside the antennal lobe. velo[LL05207] mutant DL1 projection neurons exhibit defects in axon morphology. Axons extend as wild-type and always reach the end of the lateral horn, but only form 0-2 collaterals in the mushroom body calyx, and often have a missing or shorter dorsal branch in the lateral horn. These axonal phenotypes are independent of the phenotypic class of dendrite mistargeting.
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Based on dendrite targeting defects in the antennal lobe, the following velo alleles can be ranked from most severe to weakest as follows: velo[e01260] > velo[LL05209] > velo[LL05207].
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Reported As
Symbol Synonym
veloLL05207
 
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Secondary FlyBase IDs
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Research paper
Berdnik et al., 2012, J. Neurosci. 32(24): 8331--8340
The SUMO Protease Verloren Regulates Dendrite and Axon Targeting in Olfactory Projection Neurons. [FBrf0218602]