A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\kisLM27

General Information
SymbolDmel\kisLM27SpeciesD. melanogaster
NameFlyBase IDFBal0246953
Feature typealleleAssociated geneDmel\kis
Allele class
Mutagenethyl methanesulfonate
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Description
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FB2013_03
FB2013_02
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Allele class
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Cytology
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Statement
Reference
Homozygous γ Kenyon neurons undergo proper dendritic pruning during pupal development, but they display defects in their axonal pruning and continue to display unpruned γ axons projecting into the α lobes 40% of the time in pupal brains. Cells in homozygous clones in the α, β and γ lobes of the mushroom body have normal dendrite morphology, but show axonal migration defects with axons crossing the midline (55% penetrance), cell position defects (36% penetrance) and defects in the morphology of the lobe (55% penetrance). Homozygous dorsal cluster neuron clones in the larva show a number of defects; 53% show abnormalities in position within the brain, 32% show defects in axon migration (the neurons fail to migrate to their proper contralateral targets) and 32% of cell bodies are not part of the larger cell body cluster. Homozygous adult dorsal cluster neurons do not show defects in dendrite formation. However, they show a severe reduction in the number of axons extending into the lobula and subsequently extending from the lobula into the medulla. Homozygous clones in the developing third instar larval retina show abnormal axonal migration into the developing brain, with photoreceptor axons extending beyond their normal targets and radiating out into the surrounding brain areas. These axons also show abnormal defasciculation of axonal bundles in the optic stalk. External eye morphology appears normal in adults containing homozygous clones in the retina.
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Reference
kis[+]/kisLM27 is an enhancer of eye | heat sensitive phenotype of Df(3R)p13/ato1090
kis[+]/kisLM27 is an enhancer of photoreceptor cell | heat sensitive phenotype of Df(3R)p13/ato1090
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Reference
A kis[LM27] heterozygous background gives a dominant mild enhancement to the ato[1090]/Df(3R)p13 eye phenotype at 25[o]C.
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Fails to complement
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Research paper
Melicharek et al., 2010, Hum. Mol. Genet. 19(21): 4253--4264
Kismet/CHD7 regulates axon morphology, memory and locomotion in a Drosophila model of CHARGE syndrome. [FBrf0212001]
Melicharek et al., 2008, Genetics 180(4): 2095--2110
Identification of novel regulators of atonal expression in the developing Drosophila retina. [FBrf0207360]