A Database of Drosophila Genes & Genomes

FB2008_07, released August 8, 2008
 

Aberration Dmel\Df(2R)vg-B

General Information
SymbolDmel\Df(2R)vg-BSpeciesD. melanogaster
NameDeficiency (2R) vestigial-BeadedFlyBase IDFBab0002233
Feature typechromosomal_deletionCreated / Updated2006-08-22/2006-08-22
Formalized genetic data Nacα << bk1 << bic << sie << bk2 << drk
Sequence coordinates
Deleted segment49D3--50A2
Duplicated segment
Computed Breakpoints include 49D3-49D4;50A2
Breakpoints Inherited  
hide Nature of the Aberration
Cytological Order
Progenitor
Mutagen
Class of aberration (relative to progenitor)
Breakpoints
49C1-49C2;49E2-49E3
49D3-49D4;50A2-50A5
Causes alleles
Carries alleles
Transposon Insertions
Genetic mapping information
Comments
hide Comments on Cytology
Limits of break 1 from polytene analysis (FBrf0036848) Left limit of break 2 from polytene analysis (FBrf0036848) Right limit of break 2 from polytene analysis (citation unavailable)
 
Uncovers the distal, but not the proximal, breakpoint of the In(2R)Arp1 inversion.
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DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
hide Gene Deletion & Duplication Data
hide Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Molecular Data
hide Genes NOT Deleted / Disrupted
Complementation Data
Molecular Data
hide Genes Duplicated
Complementation Data
Molecular Data
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Complementation Data
Molecular Data
hide Related Comments
Df(2R)CX1 fails to complement the P{lacW}Nrkk14301 insertion line ("l(2)k14301").
hide Phenotypic Data
In combination with other aberrations
NOT in combination with other aberrations
Does not cause unconditional lethality in hybrid females when heterozygous with D.simulans chromosome.
Does not exhibit dominant flightlessness.
Dominant enhancer of nodDTW.
Enhances BicD in heterozygotes (Mohler and Wieschaus, 1986) homozygous lethal
 
Heterozygosity for this deletion has no effect on the mutant ovarian phenotype of ovoD2.
Heterozygous females produce embryos with defects in segmentation and head structure, and also a variable and occasionally very high proportion of undeveloped eggs. Bicaudal embryos are not seen.
Homozygous embryos are very abnormal compared to wild-type. Differentiation of Malpighian tubule material is variable.
Homozygous lethal. Heterozygotes show occasional nicking of the wings.
Midgut development of mutant embryos is wild type.
Shows no maternal enhancement of dpphr4.
hide Position Effect Variegation Data
  
hide Stocks ( 3 )
Bloomington
Kyoto
hide Notes on Origin
Discoverer
Bridges, 11 April 1928.
 
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      hide Other Comments
      The Df(2R)vg-B chromosome may 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), but the eye colour phenotype in the presence of Df(2R)vg-B overlaps the eye colour phenotype in a wild-type background so it cannot be unequivocally demonstrated that the deficiency chromosome uncovers a suppressor of telomeric silencing.
      hide Synonyms & Secondary IDs ( 11 )
      Reported As
      Symbol Synonym
      Df(2R)vg-B
      Name Synonym
      Deficiency (2R) vestigial-Beaded
       
      Secondary FlyBase IDs
        hide References ( 75 )
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        hide Recent research papers ( 1 )
        Crest et al., 2007, Genetics 175(2): 567--584
        Onset of the DNA replication checkpoint in the early Drosophila embryo. [FBrf0194644]