Aberration Dmel\R(Y)bw⁺

General Information
Symbol	Dmel\R(Y)bw⁺	Species	D. melanogaster
Name		FlyBase ID	FBab0005906
Feature type	ring_chromosome

Computed Breakpoints include
Sequence coordinates
Recent Updates
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FB2012_01
FB2011_10
All updates	Click here to see a list of all updates to this record from FB2010_08 and on.
Nature of the Aberration
Cytological Order
Progenitor	Dp(1;2;Y)bw⁺y⁺
Mutagen	X ray
Class of aberration (relative to progenitor)
Breakpoints
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology
	KL (bw⁺ - ba⁺) bb⁺ KS; closed to form a ring.
Sequence Crossreferences
DDBJ / EMBL / GenBank	DNA sequence Protein sequence Name
Gene Deletion & Duplication Data
Genes Deleted / Disrupted
Complementation Data
Molecular Data
Genes NOT Deleted / Disrupted
Complementation Data
Molecular Data
Genes Duplicated
Complementation Data
Molecular Data
Genes NOT Duplicated
Complementation Data
Molecular Data
Related Comments

Phenotypic Data
In combination with other aberrations
NOT in combination with other aberrations	Embryos produced by "ring-sensitive" (RS) females carrying R(Y)bw⁺ from either parent die during embryogenesis (Stone, 1982) Ring shaped in mitotic metaphase. Lacks y⁺ present in the progenitor chromosome. Introduction of R(Y)bw⁺ via male into certain strains results in death of nearly all male progeny during early embryogenesis. About 10% of strains are subject to such killing of male offspring. Introduction of R(Y)bw⁺ via female does not result in death of the sons (Oster, 1964, Genetics 50: 274). Inviability of R(Y)bw⁺-bearing embryos shown by Stone to depend on genotype of mother.
Stocks ( 2 )
Bloomington	4047 R(Y)bw⁺; bw¹ 4046 R(1)2, f¹/R(Y)bw⁺; bw¹
Notes on Origin
Discoverer

Balancer / Genotype Variants of the Aberration

Separable Components

Other Comments

Synonyms & Secondary IDs ( 5 )
Reported As
Symbol Synonym	MYR MYR, bw⁺ (Stone, 1982) R(Y)bw⁺ Y^cbw⁺
Name Synonym	Marked Y Ring
Secondary FlyBase IDs
	FBab0005904
References ( 4 )
Research paper	Stone, 1982, Genetics 102: 245--258 Filicidal ring-Y chromosomes in Drosophila melanogaster. [FBrf0038038] Oster and Iyengar, 1955, D. I. S. 29: 159 A marked ring-Y. [FBrf0010137]
Abstract	Oster, 1964, Genetics 50: 274 Filicidal Y chromosomes. [FBrf0016240]
Book	Lindsley and Zimm, 1992, The Genome of Drosophila melanogaster. The Genome of Drosophila melanogaster. [FBrf0066905]

Aberration Dmel\R(Y)bw+

Aberration Dmel\R(Y)bw⁺