A Database of Drosophila Genes & Genomes

 

Aberration Dmel\C(1)RA

General Information
SymbolDmel\C(1)RASpeciesD. melanogaster
NameCompound (1) Reversed AcrocentricFlyBase IDFBab0000085
Feature typehomo_compound_chromosomeCreated / Updated2006-08-22/2006-08-22
Formalized genetic data
Sequence coordinates
Deleted segment
Duplicated segment
Computed Breakpoints include
Breakpoints Inherited  
hide Nature of the Aberration
Cytological Order
Progenitor
In(1)sc8
 
C(1;YL)1
 
Mutagen
spontaneous
 
recombination
 
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Genetic mapping information
Comments
hide Comments on Cytology
C(1)RA, + - In(1)sc8..
 
hide Molecularly Mapped Breakpoints
 
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DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
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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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Complementation Data
Molecular Data
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hide Phenotypic Data
In combination with other aberrations
NOT in combination with other aberrations
Yields frequent detachments resulting from exchange between the Y chromosome and the interstitial heterochromatin of the reversed acrocentric and preferential recovery of the proximal X. Tetrad distribution usually quite abnormal; one-exchange tetrads infrequent and no- and two-exchange tetrads frequent. Exchange frequency increased by addition of Y or y+YL, but tetrad distribution remains abnormal (Sandler, 1954). YL appended as a second arm to C(1)RA normalizes tetrad distribution (Sandler, 1958). Tetrad distribution is normal in more recently recovered C(1)RA chromosomes (Sandler and O\'Tousa, 1979), reason for differences between 1954 and 1979 data is unclear. The presence of a Y chromosome or a free-X duplication as a homologue markedly increases both exchange between the elements of the compound and fecundity of compound-bearing females.
 
hide Position Effect Variegation Data
  
hide Stocks ( 14 )
Bloomington
3925
Dp(1;f)1173; C(1)RA, Df(1)259, y1/C(1;Y)6, Df(1)259, y1 w1
4554
C(1)RA, cin1 y1/Dp(1;Y)y+/SxlK1274-1 v24
1305
C(1)RA, cin1 y1/Dp(1;Y)y+/cin1 y1 w1
5596
Dp(1;Y)BSC1, y+/w67c23 P{lacW}l(1)G0060G0060/C(1)RA, y1
5794
Dp(1;Y)BSC2, y+/w67c23 P{lacW}l(1)G0060G0060/C(1)RA, y1
5795
Dp(1;Y)BSC4, y+/w67c23 P{lacW}l(1)G0060G0060/C(1)RA, y1
5796
Dp(1;Y)BSC5, y+/w67c23 P{lacW}l(1)G0060G0060/C(1)RA, y1
4486
C(1)RA, y1: In(1)sc8, sc8/Dp(1;YL)y+YL/C(1;Y)1, y1 B1
3923
C(1)RA, In(1)AB, y1, In(1)sc8, sc8/Dp(1;YL)scS1/C(1;Y)1, y1 B1
3924
C(1)RA, v1 f1/C(1;YL)C2, y1 cv1 v1 f1 car1 bb-/C(YS)1
Kyoto
107271
Dp(1;f)1173; C(1)RA, Df(1)259, y1/C(1;Y)6, Df(1)259, y1 w1
107270
C(1)RA, In(1)AB, y1, In(1)sc8, sc8/Dp(1;YL)scS1/C(1;Y)1, y1 B1
hide Notes on Origin
Discoverer
Novitski.
 
between the proximal heterochromatin of X.YL and the distal heterochromatin of In(1)sc8 or possibly by sister-strand union in one of the heterochromatic segments followed by a normal euchromatic exchange. A frequently recurring event that seems to require the presence of YL. More recent attempts to repeat such constructions have been unsuccessful, except in response to X-irradiation.
 
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      hide Synonyms & Secondary IDs ( 3 )
      Reported As
      Symbol Synonym
      C(1)RA
       
      RA
       
      Name Synonym
      Compound (1) Reversed Acrocentric
       
      Secondary FlyBase IDs
        hide References ( 5 )
        Research paper
        Sandler and O'Tousa, 1979, Genetics 91: 537--551
        Heterochromatic effects on the behavior of reversed acrocentric compound-X chromosomes in Drosophila melanogaster. [FBrf0033196]
        Sandler, 1958, Cold Spring Harbor Symp. Quant. Biol. 23: 211--222
        Genetic studies on exchange in the compound X chromosomes of Drosophila melanogaster. [FBrf0011855]
        Novitski, 1954, Genetics 39(1): 127--140
        The compound X chromosomes in Drosophila. [FBrf0009543]
        Sandler, 1954, Genetics 39: 923--942
        A genetic analysis of reversed acrocentric compound X chromosomes in Drosophila melanogaster. [FBrf0009563]
        Book
        Lindsley and Zimm, 1992, The Genome of Drosophila melanogaster.
        The Genome of Drosophila melanogaster. [FBrf0066905]