FB2026_02 , released June 18, 2026
Allele: Dmel\aurA1
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General Information
Symbol
Dmel\aurA1
Species
D. melanogaster
Name
FlyBase ID
FBal0000799
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
aur074-18, aur1
Key Links
Allele class
Nature of the Allele
Allele class
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 ( 0 )
Disease
Interaction
References
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

aurA1/Df(3R)Exel6162 embryos exhibit severe chromosome mis-segregation defects.

rlSu14 and Dsor1Su1 have no effect on the mutant phenotype.

Embryos from homozygous mothers show prometaphase nuclei in juxtaposition to paired sets of centrosomes. The paired centrosomes function together as a single pole to nucleate bipolar spindles associated with two groups of condensed chromosomes. Other embryos show more extremely mitotic defects in which spindle structures associated with discrete groups of condensed chromosomes become intricately branched, sharing common centrosomes as microtubule-organizing centers. Free centrosomes that have dissociated from spindles can also be seen in such embryos. Later embryos have many polyploid nuclei. Real time observation reveals example of chromatids being pulled towards the pole of the neighboring spindle, and incomplete anaphase ending with a tetraploid nucleus.

Embryos abnormal from nuclear cycle 9 onward; multiple spindles assemble in long arrays with shared centrosomes; polyploid nuclei develop with multiple centrosomes. Hemizygotes pupate but form longer-than-normal pupae.

External Data
Interactions
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Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
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Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (2)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (6)
References (9)