A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\sina3

General Information
SymbolDmel\sina3SpeciesD. melanogaster
NameFlyBase IDFBal0015667
Feature typealleleAssociated geneDmel\sina
Map ( GBrowse ) GBrowse View Helpdetailed view FBal0015667
Allele classamorphic allele - genetic evidence
Mutagenethyl methanesulfonate
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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
deletion
comment=Deletion of 308 bp; coordinates determined from Figure 5B of FBrf0051381 and differ from the coordinates listed in Table 1.
evidence=experimental
Associated Sequence Data
DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
UniProtKB/Swiss-Prot
UniProtKB/TrEMBL
Progenitor genotype
Nature of the lesion
Statement
Reference
Deletion of 308bp of sina coding region, from 1534 through to 1842bp. This brings valine 211 in frame with the sina open reading frame stop codon. The resulting sina3 protein is truncated, missing the 103 most C-terminal amino acids.
Cytology
hide Phenotypic Data
hide Phenotypic Class
hide Phenotype Manifest In
adult abdominal segment 3 & chaeta (with sina2)
adult abdominal segment 3 & microchaeta (with sina2)
adult abdominal segment 3 & tormogen cell | supernumerary (with sina2)
adult abdominal segment 3 & trichogen cell | supernumerary (with sina2)
adult abdominal segment 4 & chaeta (with sina2)
adult abdominal segment 4 & microchaeta (with sina2)
adult abdominal segment 4 & tormogen cell | supernumerary (with sina2)
adult abdominal segment 4 & trichogen cell | supernumerary (with sina2)
mesothoracic tergum & chaeta (with sina2)
mesothoracic tergum & microchaeta (with sina2)
mesothoracic tergum & tormogen cell | supernumerary (with sina2)
mesothoracic tergum & trichogen cell | supernumerary (with sina2)
hide Detailed Description
Statement
Reference
The number of pale-type R8 cells is dramatically reduced in the eyes of sina[2]/sina[3] animals.
sina2/sina3 lack R7 photoreceptors.
Mutants show a double- bristle phenotype.
41% of the notal microchaetae and 62% of the microchaetae on abdominal segments 3 and 4 are missing in sina2/sina3 flies. 17.2% of bristles on the notum are duplicated, having 2 hairs emerging from 2 sockets or a fused socket. 44.5% of bristles on abdominal segments 3 and 4 are duplicated (2 hairs/2 sockets) and 20.9% show other defects (including 1 hair surrounded by 2-3 sockets, and 2 socket or 4 socket clusters without shafts). Embryonic development, including development of the es organs, is normal in sina2/sina3 animals.
sina2/sina3 mutants show missing R7 cells in 90% of the ommatidia. The external morphology of the eye shows a slight roughness.
Homozygotes lack R7 photoreceptor cells. This phenotype is unaltered if the flies also carry aoppok-1. R7-like cells are produced in sina3 Df(3R)E40/sina3 + flies.
Amorph based on the phenotypes of hemizygous <up>sina1/Df(3L)st-g18</up> versus that of homozygous flies.
This allele probably represents complete loss of function of the sina gene. In the ommatidia the R7 photoreceptor cell is always missing, the R7 precursor adopting a cone cell fate, and sometimes one or two cells of the R1-R6 class are missing as well. The normal trapezoidal arrangement of the R1-R6 cells is disorganised, and the R8 cell is often found in uncharacteristic positions. Other adult sensory organs are also affected: sensory bristles distributed over the body surface are frequently missing, with neither the cuticular bristle sheath nor the socket being present, affected sensory organs including the microchaetae and macrochaetae of the head, notum, abdomen and wing margin, and the stout and slender bristles of the anterior wing margin. The phenotype is most severe with bristles located on the abdomen, where often only a minor fraction of the normal number of bristles are present. Also, many of the remaining bristles have two or three sheaths emerging from a single socket. There is also a 10-fold reduction in adult lifespan, and adult behaviour is generally lethargic and uncoordinated. Neither males nor females are fertile, although they produce morphologically normal sperm and eggs, respectively.
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Linkouts
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hide Phenotypic Class
hideEnhanced by
Statement
Reference
sina3/sina2 has visible phenotype, enhanceable by msi1/msi1
sina3/sina2 has visible phenotype, enhanceable by phyl[+]/phyl2245
sina3/sina2 has visible phenotype, enhanceable by phyl2/phyl[+]
hideSuppressed by
Statement
Reference
sina3/sina2 has visible phenotype, suppressible by ttk[+]/ttkosn
hideEnhancer of
Statement
Reference
sina3/sina2 is an enhancer of visible | recessive phenotype of msi1
sina3/sina2 is an enhancer of visible phenotype of msi1
hideNOT Enhancer of
Statement
Reference
sina3 is a non-enhancer of visible phenotype of Pp2B-14Dact.GMR
hideSuppressor of
Statement
Reference
sina3 is a suppressor of visible phenotype of Src64BΔ540.hs.2sev
hideNOT Suppressor of
Statement
Reference
sina3 is a non-suppressor of visible phenotype of CanBGMR.PS, Pp2B-14Dact.GMR
sina3 is a non-suppressor of visible phenotype of Pp2B-14Dact.GMR
hide Phenotype Manifest In
hideEnhanced by
Statement
Reference
sina3/sina2 has adult abdominal segment 3 & chaeta phenotype, enhanceable by phyl2/phyl[+]
sina3/sina2 has adult abdominal segment 3 & microchaeta phenotype, enhanceable by phyl[+]/phyl2245
sina3/sina2 has adult abdominal segment 3 & microchaeta phenotype, enhanceable by phyl2/phyl[+]
sina3/sina2 has adult abdominal segment 4 & chaeta phenotype, enhanceable by phyl2/phyl[+]
sina3/sina2 has adult abdominal segment 4 & microchaeta phenotype, enhanceable by phyl[+]/phyl2245
sina3/sina2 has adult abdominal segment 4 & microchaeta phenotype, enhanceable by phyl2/phyl[+]
sina3/sina2 has mesothoracic tergum & chaeta phenotype, enhanceable by phyl[+]/phyl2245
sina3/sina2 has mesothoracic tergum & chaeta phenotype, enhanceable by phyl2/phyl[+]
sina3/sina2 has mesothoracic tergum & microchaeta phenotype, enhanceable by phyl[+]/phyl2245
sina3/sina2 has mesothoracic tergum & microchaeta phenotype, enhanceable by phyl2/phyl[+]
sina3/sina2 has mesothoracic tergum & tormogen cell | supernumerary phenotype, enhanceable by phyl[+]/phyl2245
sina3/sina2 has mesothoracic tergum & tormogen cell | supernumerary phenotype, enhanceable by phyl2/phyl[+]
sina3/sina2 has mesothoracic tergum & trichogen cell | supernumerary phenotype, enhanceable by phyl[+]/phyl2245
sina3/sina2 has mesothoracic tergum & trichogen cell | supernumerary phenotype, enhanceable by phyl2/phyl[+]
hideSuppressed by
Statement
Reference
msi1, sina3/sina2 has cone cell phenotype, suppressible by ttkosn
msi1, sina3/sina2 has ommatidium phenotype, suppressible by ttkosn
msi1, sina3/sina2 has rhabdomere phenotype, suppressible by ttkosn
sina3/sina2 has adult abdominal segment 3 & chaeta phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has adult abdominal segment 3 & microchaeta phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has adult abdominal segment 3 & tormogen cell | supernumerary phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has adult abdominal segment 3 & trichogen cell | supernumerary phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has adult abdominal segment 4 & chaeta phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has adult abdominal segment 4 & microchaeta phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has adult abdominal segment 4 & tormogen cell | supernumerary phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has adult abdominal segment 4 & trichogen cell | supernumerary phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has mesothoracic tergum & chaeta phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has mesothoracic tergum & tormogen cell | supernumerary phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has mesothoracic tergum & trichogen cell | supernumerary phenotype, suppressible by ttk[+]/ttkosn
sina3/sina2 has ommatidium phenotype, suppressible by edslH8/ed1X5
sina3 has phenotype, suppressible | partially by ttkosn
hideEnhancer of
Statement
Reference
sina3/sina2 is an enhancer of external sensory organ phenotype of msi1
sina3/sina2 is an enhancer of ommatidium phenotype of msi1
hideNOT Enhancer of
Statement
Reference
sina3 is a non-enhancer of eye phenotype of CanBGMR.PS, Pp2B-14Dact.GMR
sina3 is a non-enhancer of eye phenotype of Pp2B-14Dact.GMR
hideSuppressor of
Statement
Reference
sina3/sina2 is a suppressor of eye phenotype of phylGMR.PC
sina3 is a suppressor of eye phenotype of Src64BΔ540.hs.2sev
sina3 is a suppressor of phenotype of phylhs.sev
hideNOT Suppressor of
Statement
Reference
sina3 is a non-suppressor of eye phenotype of CanBGMR.PS, Pp2B-14Dact.GMR
sina3 is a non-suppressor of eye phenotype of Pp2B-14Dact.GMR
hideOther
Statement
Reference
hide Additional Comments
hide Genetic Interactions
Statement
Reference
Double mutants of sina2/sina3 with msi1 show a synergistic, not additive, eye phenotype. Ommatidial arrays are disturbed, eyes consequently roughened and ommatidia do not contain more than five rhabdomeres. Cone cell array is disturbed. 30% of the ommatidia of sina2 msi1 ttkosn/sina3 msi1 show the normal number and arrangement of photoreceptor cells. The cone cell defects of sina2 msi1/sina3 msi1 are also suppressed by ttkosn.
The phylGMR.PC eye phenotype is completely suppressed in a sina2/sina3 background; the eyes are normal, except for the lack of R7 photoreceptor cells due to the absence of sina function. sina2/sina3 flies carrying both phylGMR.PC and ttk88.GMR.T:Hsap\MYC have very disrupted eyes, similar to those of flies carrying ttk88.GMR.T:Hsap\MYC alone.
sina1/sina3; svp1.sev and sina1/sina3; svp2.sev flies differentiate neither normal nor ectopic R7 cells.
hide Xenogenetic Interactions
Statement
Reference
hide Complementation & Rescue Data
Comments
hide Stocks ( 3 )
Bloomington
Kyoto
hide Notes on Origin
Discoverer
hide Comments
No interaction with P{sev-svp1} or P{sev-svp2} exists.
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Other Crossreferences
Linkouts
hide Synonyms & Secondary IDs ( 3 )
Reported As
Symbol Synonym
Name Synonym
Secondary FlyBase IDs
  • FBal0056160
hide References ( 23 )
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