FB2026_02 , released June 18, 2026
Allele: Dmel\ord9
Open Close
General Information
Symbol
Dmel\ord9
Species
D. melanogaster
Name
FlyBase ID
FBal0063827
Feature type
allele
Associated gene
Dmel\ord
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Mutagen
Nature of the Allele
Allele class
Mutagen
ethyl methanesulfonate
(Bickel et al., 1997)
Progenitor genotype
Cytology
Description

Amino acid replacement: I64N. Nucleotide substitution: T?A.

(Bickel et al., 1997)
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
point_mutation
2R:23,273,526..23,273,526 [-]
Nucleotide change:

T23273526A

Reported nucleotide change:

T?A

Amino acid change:

I64N | ord-PA; I64N | ord-PB

Reported amino acid change:

I64N

(Bickel et al., 1997)
Variant Molecular Consequences
Associated Sequence Data
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
 
UniProtKB/Swiss-Prot
    UniProtKB/TrEMBL
      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

      Males and females exhibit missegregation of the sex chromosomes. During early meiosis I bivalent structure is abnormal and precocious separation of sister chromatids is seen in secondary spermatocytes. Segregation defects appear to be arising from inadequate cohesion. Hemizygous females exhibit reduced fertility, few male progeny do show evidence of a crossover event (meiotic recombination). Mutation does not interfere with ord4 activity: does not show negative complementation.

      (Bickel et al., 1997)
      External Data
      Interactions
      Show genetic interaction network for Enhancers & Suppressors
      Phenotypic Class
      Phenotype Manifest In
      Additional Comments
      Genetic Interactions
      Statement
      Reference
      Xenogenetic Interactions
      Statement
      Reference
      Complementation and Rescue Data
      Comments
      Images (0)
      Mutant
      Wild-type
      Stocks (0)
      Notes on Origin
      Discoverer
      Comments
      Comments

      Strong ord mutation.

      (Bickel et al., 1997)
      External Crossreferences and Linkouts ( 0 )
      Synonyms and Secondary IDs (1)
      Reported As
      Symbol Synonym
      ord9
      Name Synonyms
      Secondary FlyBase IDs
        References (3)