A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\bwD

General Information
SymbolDmel\bwDSpeciesD. melanogaster
NameFlyBase IDFBal0001375
Feature typealleleAssociated geneDmel\bw
Also Known AsbwD, brownDominant
Allele classamorphic allele - genetic evidence
Mutagenspontaneous
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Description
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FB2013_03
FB2013_02
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hide Nature of the Allele
Allele class
Mutagen
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
Nature of the lesion
Statement
Reference
Insertion of sequences, interrupting Gly 577 of the open reading frame.
Insertion of a large block (greater than 1 megabase) of heterochromatin containing AAGAG satellite into the coding region of bw.
Insertion of a block of heterochromatin into the bw locus.
bw gene is interrupted by sequences that lack tested restriction sites and are likely to be simple sequence repeats characteristic of heterochromatin.
Caused by aberration
Carried on aberration
Cytology
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Statement
Reference
Only about 5% of the eye cells are pigmented in bw[D]/+ heterozygous flies.
When the polyamide P31 is fed to bwD flies a developmental delay (not seen in wild-type) is observed. This is seen in both heterozygotes and homozygotes, though is more marked in homozygotes. These flies also exhibit a transformation of abdominal segment A6 to A5 and slight roughening of the eye. The addition of P31 enhances the A6 to A5 phenotypes seen in bwD, Ubx1 flies and reduces their viability.
When bwD males are mated with females that have already been mated, bwD males are weaker sperm displacers than wild-type males.
Enhances transinactivation of bw caused by Tp(2;2)bw-DX7.
Heterozygotes have eyes that are white with a quite uniform scattering of individual reddish spots within ommatidia.
Antagonizes the expression of as many as three normal copies of bw in trans. bwD/+ shows nearly a 100-fold reduction in pteridine levels. bwD/bwV1 > bwD/+ > bwD/bwD in severity of effect.
Variegation suppressed by extra Y chromosomes.
Malpighian tubule colour: bright yellow.
dominant position-effect variegation for bw Eye colour: purple to brown; varies with age. Shows slight variegation in combination with st (FBrf0010216). Wings pebbled.
 
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Statement
Reference
bwD, bwPrat.PC has eye color defective phenotype, enhanceable by Mod(Prat:bw)2-52-5/Mod(Prat:bw)2-5[+]
bwD, bwPrat.PC has eye color defective phenotype, enhanceable by Mod(Prat:bw)3-1[+]/Mod(Prat:bw)3-13-1
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Statement
Reference
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Statement
Reference
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)2-3[+]/Mod(Prat:bw)2-32-3
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)3-2[+]/Mod(Prat:bw)3-23-2
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)3-3[+]/Mod(Prat:bw)3-33-3
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)3-4[+]/Mod(Prat:bw)3-43-4
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)3-63-6/Mod(Prat:bw)3-6[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)3-9[+]/Mod(Prat:bw)3-93-9
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)3-10[+]/Mod(Prat:bw)3-103-10
bwD, bwPrat.PC has eye color defective phenotype, suppressible | partially by Mod(Prat:bw)3-123-12/Mod(Prat:bw)3-12[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)1-1[+]/Mod(Prat:bw)1-11-1
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)1-21-2/Mod(Prat:bw)1-2[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)1-31-3/Mod(Prat:bw)1-3[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)1-41-4/Mod(Prat:bw)1-4[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)1-5[+]/Mod(Prat:bw)1-51-5
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)2-1[+]/Mod(Prat:bw)2-12-1
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)2-1[+]/Mod(Prat:bw)2-12-2
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)2-42-4/Mod(Prat:bw)2-4[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)3-53-5/Mod(Prat:bw)3-5[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)3-7[+]/Mod(Prat:bw)3-73-7
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)3-83-8/Mod(Prat:bw)3-8[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)3-113-11/Mod(Prat:bw)3-11[+]
bwD, bwPrat.PC has eye color defective phenotype, suppressible by Mod(Prat:bw)Y-1[+]/Mod(Prat:bw)Y-1Y-1
hideNOT suppressed by
Statement
Reference
bwD has eye color defective phenotype, non-suppressible by Df(2R)M41A10
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Reference
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hideEnhanced by
Statement
Reference
bwD, bwPrat.PC has pigment cell phenotype, enhanceable by Mod(Prat:bw)2-52-5/Mod(Prat:bw)2-5[+]
bwD, bwPrat.PC has pigment cell phenotype, enhanceable by Mod(Prat:bw)3-1[+]/Mod(Prat:bw)3-13-1
bwD has eye phenotype, enhanceable by Chd1EP/Scer\GAL4GMR.PF
hideNOT Enhanced by
Statement
Reference
hideSuppressed by
Statement
Reference
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)2-3[+]/Mod(Prat:bw)2-32-3
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)3-2[+]/Mod(Prat:bw)3-23-2
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)3-3[+]/Mod(Prat:bw)3-33-3
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)3-4[+]/Mod(Prat:bw)3-43-4
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)3-63-6/Mod(Prat:bw)3-6[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)3-9[+]/Mod(Prat:bw)3-93-9
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)3-10[+]/Mod(Prat:bw)3-103-10
bwD, bwPrat.PC has pigment cell phenotype, suppressible | partially by Mod(Prat:bw)3-123-12/Mod(Prat:bw)3-12[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)1-1[+]/Mod(Prat:bw)1-11-1
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)1-21-2/Mod(Prat:bw)1-2[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)1-31-3/Mod(Prat:bw)1-3[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)1-41-4/Mod(Prat:bw)1-4[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)1-5[+]/Mod(Prat:bw)1-51-5
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)2-1[+]/Mod(Prat:bw)2-12-1
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)2-1[+]/Mod(Prat:bw)2-12-2
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)2-42-4/Mod(Prat:bw)2-4[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)3-53-5/Mod(Prat:bw)3-5[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)3-7[+]/Mod(Prat:bw)3-73-7
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)3-83-8/Mod(Prat:bw)3-8[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)3-113-11/Mod(Prat:bw)3-11[+]
bwD, bwPrat.PC has pigment cell phenotype, suppressible by Mod(Prat:bw)Y-1[+]/Mod(Prat:bw)Y-1Y-1
bwD has eye phenotype, suppressible | partially by Kdm4BEY10737
bwD has eye phenotype, suppressible by DekEP13/Scer\GAL4GMR.PF
bwD has eye phenotype, suppressible by sleEPDJ1/Scer\GAL4GMR.PF
bwD has eye phenotype, suppressible by taiEP27/Scer\GAL4GMR.PF
hideNOT suppressed by
Statement
Reference
bwD has pigment cell phenotype, non-suppressible by Df(2R)M41A10
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Statement
Reference
CycB[2] dominantly reduces the area of sectors of increased pigmentation in a bw[D]/+ genetic background resulting from the over-expression of crol[unspecified] driven by Scer\GAL4[unspecified]. Mis-expression of Kdm4B[EY10737] driven by Scer\GAL4[GMR.PF] restores eye pigmentation in bw[D]/+ heterozygotes. Kdm4B[EY10737] partially restores eye pigmentation in bw[D]/+ heterozygotes. Flies expressing Scer\GAL4[ey.PH]-driven crol[LAJJ2A] display sectors of increased pigmentation in a speckled background. Flies expressing Scer\GAL4[ey.PH]-driven crol[d03228] in a bw[D]/+ genetic background display sectors of increased pigmentation in a speckled background. Flies expressing Scer\GAL4[ey.PH]-driven tai[EP27] in a bw[D]/+ genetic background display rough eyes. Flies expressing Scer\GAL4[ey.PH]-driven Hr39[LA1.4] in a bw[D]/+ genetic background display rough eyes. Flies expressing Scer\GAL4[ey.PH]-driven in a bw[D]/+ genetic background psq[LA11A] have small eyes. Mis-expression of Acf1[EY08629] driven by Scer\GAL4[ey.PH] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of XNP[EP635] driven by Scer\GAL4[ey.PH] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of HmgZ[EY23248] driven by Scer\GAL4[ey.PH] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of vig2[LA4.5] driven by Scer\GAL4[ey.PH] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Ino80[d10097] driven by Scer\GAL4[ey.PH] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Dek[EP13] driven by Scer\GAL4[GMR.PF] restores eye pigmentation in bw[D]/+ heterozygotes. Mis-expression of tai[EP27] driven by Scer\GAL4[GMR.PF] restores eye pigmentation in bw[D]/+ heterozygotes. Mis-expression of sle[EPDJ1] driven by Scer\GAL4[GMR.PF] restores eye pigmentation in bw[D]/+ heterozygotes. Mis-expression of pita[LA4.1] driven by Scer\GAL4[GMR.PF] restores eye pigmentation in bw[D]/+ heterozygotes. Mis-expression of CG13895[EP14C] driven by Scer\GAL4[GMR.PF] restores eye pigmentation in bw[D]/+ heterozygotes. Mis-expression of Acf1[EY08629] driven by Scer\GAL4[GMR.PF] restores eye pigmentation in bw[D]/+ heterozygotes. Mis-expression of XNP[EP635] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of CG5794[LA3.4] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of HmgD[EY03609] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of HmgZ[EY23248] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of His3.3B[d04051] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of asf1[LA00872] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Smc5[EY03252] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Rm62[EY06795] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of CG3162[LA1.6] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of ban[LA2.5] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Flies expressing Scer\GAL4[GMR.PF]-driven ban[LA2.5] in a bw[D]/+ genetic background display rough eyes. Mis-expression of ban[LAS55] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Flies expressing Scer\GAL4[GMR.PF]-driven ban[LAS55] in a bw[D]/+ genetic background display rough eyes. Mis-expression of Hpr1[EY04120] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of DLP[EY09290] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of crol[LAJJ2A] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Flies expressing Scer\GAL4[GMR.PF]-driven crol[LAJJ2A] in a bw[D]/+ genetic background display rough eyes. Mis-expression of Mta70[LA1.3] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of LAS110[LAS110] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of CG7757[LA2.4] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of l(3)neo38[LAS146] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of kis[LA4.3] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of kis[EY12846] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Etl1[EP701] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Hr39[LA1.4] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of LA2.1[LA2.1] driven by Scer\GAL4[GMR.PF] results in increased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Flies expressing Scer\GAL4[GMR.PF]-driven LA2.1[LA2.1] in a bw[D]/+ genetic background display rough eyes. Mis-expression of psq[LA11A] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Flies expressing Scer\GAL4[GMR.PF]-driven psq[LA11A] in a bw[D]/+ genetic background display rough eyes. Mis-expression of Samuel[LAE154] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Flies expressing Scer\GAL4[GMR.PF]-driven Samuel[LAE154] in a bw[D]/+ genetic background display rough eyes. Mis-expression of Ubp64E[LA5.3] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of jim[LA3.1] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of CG8036[LA3.2] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of CG10630[LA4.4] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of vig2[LA4.5] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Pur-α[LA77A] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Flies expressing Scer\GAL4[GMR.PF]-driven Pur-α[LA77A] in a bw[D]/+ genetic background display rough eyes. Mis-expression of Ino80[d10097] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Mis-expression of Chd1[EP] driven by Scer\GAL4[GMR.PF] results in decreased eye pigmentation in bw[D]/+ heterozygotes compared with that in the parental bw[D]/+ line. Contemporaneous expression of jim[LA3.1] with crol[unspecified] driven by Scer\GAL4[unspecified] reduces the size and frequency of sectors of increased pigmentation in a bw[D]/+ genetic background, but the background speckled variegation remains unchanged. Contemporaneous expression of CG8036[LA3.2] with crol[unspecified] driven by Scer\GAL4[unspecified] reduces the size and frequency of sectors of increased pigmentation in a bw[D]/+ genetic background, but the background speckled variegation remains unchanged. Contemporaneous expression of CG10630[LA4.4] with crol[unspecified] driven by Scer\GAL4[unspecified] reduces the size and frequency of sectors of increased pigmentation in a bw[D]/+ genetic background, but the background speckled variegation remains unchanged. Contemporaneous expression of Ubp64E[LA5.3] with crol[unspecified] driven by Scer\GAL4[unspecified] increases the size or frequency of sectors of increased pigmentation in a bw[D]/+ genetic background, but the background speckled variegation remains unchanged.
Df(2R)M41A10 does not suppress the bwD/+ phenotype. Transinactivation of bw in interspecific bwD heterozygotes (in which D.melanogaster bwD has been introgressed into the D.simulans background and backcrossed to D.simulans for six generations) is moderately suppressed compared to D.melanogaster bwD heterozygotes.
The w+mC gene in the P{lacW} transposon shows trans-inactivation in the presence of Dp(?;2)bwD in the P{lacW}chrwk06908, P{lacW}Dcp-1k05606, P{lacW}l(2)s4830s4830 and P{lacW}aptk15608 insertions. The P{lacW}l(2)k09913k09913, P{lacW}l(2)k07136k07136 and P{lacW}aptk11531 insertions do not show trans-inactivation of the w+mC gene in the presence of Dp(?;2)bwD. The P{lacW}aptk15608 insertion does not show cis-inactivation of the w+mC gene in the presence of Dp(?;2)bwD. The w+mW.hs gene in the P{hsp26-pt-T} transposon shows a partial salt and pepper trans-inactivation in the posterior section of the eye in the P{hsp26-pt-T}chrwab28 insertion in the presence of Dp(?;2)bwD. The w+mW.hs gene in the P{hsp26-pt-T} transposon does not show trans-inactivation or cis-inactivation in the P{hsp26-pt-T}Dcp-1mgb48 insertion in the presence of Dp(?;2)bwD.
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Statement
Reference
The increased eye pigmentation in bw[D]/+ heterozygotes resulting from the mis-expression of Acf1[EY08629] driven by Scer\GAL4[GMR.PF] is not affected by Hsap\CDKN1A[GMR.PH]. The increased eye pigmentation in bw[D]/+ heterozygotes resulting from the mis-expression of ban[unspecified] driven by Scer\GAL4[GMR.PF] is suppressed by Hsap\CDKN1A[GMR.PH]. The increased eye pigmentation in bw[D]/+ heterozygotes resulting from the mis-expression of crol[unspecified] driven by Scer\GAL4[GMR.PF] is suppressed by Hsap\CDKN1A[GMR.PH].
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Comments
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Bloomington
Kyoto
101339
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Discoverer
T. Hinton, 1940.
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Using the FISH technique is can be shown that bwD insertion does not affect the pairing or vertical placement of the bw locus, but the insertion of heterochromatin appears to target to bw locus to the nuclear envelope. bwD associates with centromeric satellite sequences in diploid larval tissues. Insertion of satellite DNA at one bw locus causes both gene copies to associate with heterochromatin. The effect of the insertion is a specific association of the bw gene with other heterochromatin on chromosome 2.
Whereas this alleles has previously been reported to be revertable (FBrf0007893), recent efforts have shown it to be non-revertable (K. Loughney, unpublished data).
Since 1950 some and perhaps all lines of bwD have undergone a secondary event that removed a portion of the coding region of the brown gene, generating a null allele.
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Reported As
Symbol Synonym
Name Synonym
brown(Dominant)
 
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