A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Aberration Dmel\Df(2R)Px2

General Information
SymbolDmel\Df(2R)Px2SpeciesD. melanogaster
NameDeficiency (2R) PlexateFlyBase IDFBab0002027
Feature typechromosomal_deletion
Also Known AsDf(2R)Px2
Computed Breakpoints include 60C6;60D9-60D10
Deleted segment60C6--60D9 (Estimated cytology)
Map ( GBrowse ) GBrowse View Help Untitled Document detailed view
Sequence coordinates
2R:20,155,881..20,193,551 (Df(2R)Px2:bk1)
2R:20,492,825..20,500,415 (Df(2R)Px2:bk2)
Member of large scale dataset(s)
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Description
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FB2013_03
FB2013_02
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hide Nature of the Aberration
Cytological Order
Progenitor
Mutagen
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data sp Nop60B << bk1 <<βTub60D << God << bk2 << Dll
Genetic mapping information
Comments
hide Comments on Cytology
The left Df(2R)Px2 breakpoint lies within CG13577 or βTub60D or in the region between them, and lies in the range 2R:20155881..20193551 (R5) (predicted cytology: 60C4-60C6).
The right Df(2R)Px2 breakpoint lies within CG4707 or CG42360 and CG42361 or in the region between them, and lies in the range 2R:20492825..20500415 (R5) (predicted cytology: 60D9).
Left limit of break 1 from polytene analysis (FBrf0047276) Right limit of break 1 from inclusion of slbo (FBrf0055567) Limits of break 2 from polytene analysis (FBrf0049878)
 
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DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
hide Gene Deletion & Duplication Data
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Complementation Data
Completely deleted / disrupted
Molecular Data
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Complementation Data
Molecular Data
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Complementation Data
Molecular Data
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Complementation Data
Molecular Data
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hide Phenotypic Data
In combination with other aberrations
No effect on In(1)wm4h position-effect variegation.
Lethal in combination with Df(2R)Px5.
Df(2R)Px1/Df(2R)Px2 lethal Df(2R)Px2/Df(2R)Px5 lethal
 
NOT in combination with other aberrations
Homozygotes show lethality at late stages of embryogenesis. The body wall muscles develop correctly in the mutant embryos and attach to the epidermis as in wild type.
The Df(2R)Px2 chromosome does not act as a dominant suppressor of telomeric silencing (assayed using the effect of the chromosome on the eye colour phenotype of flies carrying "P{wvar}KR3-2", a stable "brown-red" variant of the P{3'WP-2,wvar}2Lt insertion).
Heterozygosity for Df(2R)Px2 results in 0.8% X chromosome nondisjunction and 0.6% fourth chromosome nondisjunction in In(1)FM7/X ; svspa-pol females.
Heterozygotes show an extra wing vein phenotype.
Heterozygotes have a blistered wing and ectopic vein phenotype.
No defects in targeting are seen in individual axons in Df(2R)Px2 heterozygotes. However the R7,8 axon array is mispositioned in 13% of optic lobes in pupal brains.
Heterozygotes have ectopic wing veins.
Does not cause unconditional lethality in hybrid females when heterozygous with D.simulans chromosome.
No second site non-complementing phenotype with zipEbr and zipmhc-c6.1.
Shows no maternal enhancement of dpphr4.
Transheterozygotes with βTub60DP126 are semi-lethal and survivors are sterile, remaining combinations with βTub60D alleles are lethal. Myogenesis and sarcomere integrity are normal in mutant larvae and embryos.
Dominantly causes tergite defects in less than 50% of run3 heterozygotes.
The tracheal phenotypes previously reported for this deficiency in FBrf0051997 and FBrf0072461, where the primary branches are disrupted and discontinuous, are due to the deletion of a gene other than bs, or more than one gene in the region.
Shows a haploinsufficient ectopic wing vein phenotype.
Deficient embryos show a variably penetrant mutant midgut phenotype: central constriction forms posterior to normal site.
Homozygous embryos have a defective tracheal system.
Heterozygosity for this deletion has no effect on the mutant ovarian phenotype of ovoD2.
Heterozygotes with T(2;3)God1 are inviable.
Progeny of the genotype zip/Df(zip) exhibit the mlf phenotype (malformed syndrome), wing malformations and leg defects, at a penetrance of 14--35%.
Heterozygotes have smaller and narrower wings, slight plexates between all longitudinal veins. Veins are thickened at irregular intervals
cell lethal (Ripoll and Garcia-Bellido, 1979). Wing veins of heterozygote with plexuslike or δlike thickenings, most often near posterior crossvein and free fragments of vein, most often in third posterior cell; L4 vein bent near margin. Wings smaller and narrower than wild type and dusky textured. Closely resembles bs. Expression more extreme in female; enhanced by cold (19o). embryonic lethal as homozygote
 
hide Stocks ( 3 )
Bloomington
Kyoto
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Discoverer
Schultz, 1st Dec. 1932.
 
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Complementation tests reported for Df(2R)Px1 may have used a Df(2R)Px2 stock. The Mid-America Stock Center stock 1779 and the Bloomington Stock Center stock 750, which were labeled Df(2R)Px1, were in fact Df(2R)Px2 stocks. The mix-up predates 1991.
hide Synonyms & Secondary IDs ( 10 )
Reported As
Symbol Synonym
Def-(2R) Px2
Def (2R) Px2
Name Synonym
Deficiency (2R) Plexate
 
Secondary FlyBase IDs
hide References ( 71 )
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hide Recent research papers ( 2 )
Rudolf et al., 2012, Europ. J. Cell Biol. 91(3): 192--203
The syncytial visceral and somatic musculature develops independently of β3-Tubulin during Drosophila embryogenesis, while maternally supplied β1-Tubulin is stable until the early steps of myoblast fusion. [FBrf0217503]
Giang et al., 2011, J. Neurogenet. 25(1-2): 17--26
The Serotonin Transporter Expression in Drosophila melanogaster. [FBrf0213697]