Allele Dmel\B^BB

General Information
Symbol	Dmel\B^BB	Species	D. melanogaster
Name	Bar + Bar	FlyBase ID	FBal0000857
Feature type	allele	Associated gene	Dmel\B

Allele class
Mutagen	spontaneous, unequal recombination
Recent Updates
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FB2013_03
FB2013_02
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Nature of the Allele
Allele class
Mutagen	spontaneous unequal recombination
Mutations Mapped to the Genome

Type Location Additional Notes References
Associated Sequence Data
DDBJ / EMBL / GenBank	DNA sequence Protein sequence Name

UniProtKB/Swiss-Prot
UniProtKB/TrEMBL

Progenitor genotype	B¹
Nature of the lesion	Statement Reference
Cytology
Phenotypic Data
Phenotypic Class
	neuroanatomy defective (Renfranz and Benzer, 1989) viable visible \| dominant
Phenotype Manifest In
	eye medial ocellus (Lefevre, 1941) optic lobe (Power, 1942, Renfranz and Benzer, 1989)
Detailed Description
	Statement Reference Deep cleft anteriorly in optic lobe; cell clusters at cleft look mature. RK1A. (Renfranz and Benzer, 1989) Eye more reduced than in B¹. Facet numbers are 25, 29 and 45 in homozygous female, hemizygous male and heterozygous female, respectively. (Lefevre, 1941)
External Data
Linkouts
Interactions
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement Reference
Xenogenetic Interactions
Statement Reference
Complementation & Rescue Data
Comments
Stocks ( 3 )
Bloomington	39 f¹ B^BB/C(1)DX, y¹ f¹ 4484 Dp(1;1)B^STAG, sc¹ w¹ B^BB/C(1)DX, y¹ f¹
Kyoto	107757 Dp(1;1)B^STAG, sc¹ w¹ B^BB/C(1)DX, y¹ f¹
Notes on Origin
Discoverer	Zeleny.

External Crossreferences & Linkouts
Other Crossreferences

Linkouts

Synonyms & Secondary IDs ( 6 )
Reported As
Symbol Synonym	B^BB BB
Name Synonym	Bar + Bar Bar double double Bar Ultra-bar
Secondary FlyBase IDs

References ( 6 )
Research paper	Renfranz and Benzer, 1989, Dev. Biol. 136(2): 411--429 Monoclonal antibody probes discriminate early and late mutant defects in development of the Drosophila retina. [FBrf0049495] Lefevre, 1941, D. I. S. 14: 40 [New mutants report.] [FBrf0065677] Bridges, 1936, Science 83: 210--211 The Bar 'gene' a duplication. [FBrf0003681] Sturtevant, 1925, Genetics 10: 117--147 The effects of unequal crossing over at the Bar locus in Drosophila. [FBrf0001398] Zeleny, 1920, J. exp. Zool. 30: 293--324 A change in the Bar gene of Drosophila melanogaster involving further decrease in facet number and increase in dominance. [FBrf0000991]
Abstract	Power, 1942, Genetics 27: 161 Neurological effects of mutants reducing facet number in the eyes of Drosophila melanogaster. [FBrf0005718]

Allele Dmel\BBB

Allele Dmel\B^BB