FB2024_03 , released June 25, 2024
Allele: Dmel\smg1
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General Information
Symbol
Dmel\smg1
Species
D. melanogaster
Name
FlyBase ID
FBal0102400
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
smaug1
Key Links
Nature of the Allele
Progenitor genotype
Cytology
Description
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Variant Molecular Consequences
Associated Sequence Data
DNA sequence
Protein sequence
 
Expression Data
Reporter Expression
Additional Information
Statement
Reference
 
Marker for
Reflects expression of
Reporter construct used in assay
Human Disease Associations
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 0 )
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 1 )
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

smg1/Df(3L)Scf-R6 third instar larvae show a reduction in the density of terminal dendritic branches of the class IV da neurons.

Embryos derived from hemizygous females arrest very early in embryonic development. Nuclear divisions appear essentially indistinguishable from wild type from fertilisation through cycle 10. However, beginning in cycle 11, the pattern of nuclei becomes increasingly irregular, with a variety of defects including asynchronous mitoses and "gaps" in the otherwise regular array of nuclei at the surface of the embryo. The proportion of mitotic nuclei suggests that progression through mitosis is retarded. The terminal phenotype appears to result from the aggregation of nuclei that fall from the surface into the middle of the embryo. The embryos never achieve the nuclear density seen at the surface of wild-type cycle 14 embryos and fail to cellularise.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressor of
Statement
Reference

smg[+]/smg1 is a suppressor of visible phenotype of Hsap\PABPN117ala.Act88F

Other
Statement
Reference
Phenotype Manifest In
Enhancer of
Statement
Reference

smg[+]/smg1 is an enhancer of eye phenotype of Scer\GAL4GMR.PU, Zzzz\CTGi480.UAS

smg[+]/smg1 is an enhancer of eye phenotype of Hsap\CELF1UAS.cdHa, Scer\GAL4GMR.PU

NOT Enhancer of
Statement
Reference

smg[+]/smg1 is a non-enhancer of eye phenotype of Hsap\MBNL1UAS.Tag:Xpress, Scer\GAL4GMR.PU

Suppressor of
Statement
Reference

smg[+]/smg1 is a suppressor of wing phenotype of Hsap\PABPN117ala.Act88F

NOT Suppressor of
Statement
Reference
Additional Comments
Genetic Interactions
Statement
Reference

smg1 glo162x double mutant larvae do not show a more severe phenotype in the class IV da neurons than either single mutant.

Embryos derived from twinGS8115 smg1 double heterozygotes show 32% lethality, whereas embryos derived from either single mutant do not show maternal effect lethality.

The frequency of the adolescent phenotype in animals expressing nosαTub84B.3'UTR.nos+2.Scer\UAS under the control of Scer\GAL4sca-109-68 is not altered if they are also carrying smg1.

Xenogenetic Interactions
Statement
Reference

smg1 suppresses the wing posture defects seen upon expression of Hsap\PABPN117ala.Act88F.

Complementation and Rescue Data
Rescued by
Not rescued by
Comments

smgDocA and smgDocB complement the female sterility associated with smg1.

Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer

Separable from: a second site lethal mutation on the chromosome.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (3)
References (17)