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General Information
D. melanogaster
Deficiency (2L) Segregation distorter
FlyBase ID
Feature type
Also Known As
SD-MadR77, SDR77, Df(2L)SDR77
Computed Breakpoints include


Sequence coordinates
2L:19,171,128..19,173,628 [+] (Df(2L)Sd77:bk1)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Class of aberration (relative to wild type)
Causes alleles
Carries alleles
Transposon Insertions
Formalized genetic data

brat << bk1 << γTub37C << l(2)38Aa << bk2 << ms(2)38C

Genetic mapping information

Distal breakpoint +47.05 - +52.55 kb <up>for coordinates see deficiency map under l(2)37</up>

Comments on Cytology

Left limit of break 1 from polytene analysis (FBrf0084402) Right limit of break 1 from inclusion of γTub37C (FBrf0084402) Limits of break 2 from polytene analysis (FBrf0039473)

Sequence Crossreferences
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Genes NOT Deleted / Disrupted
Genes Duplicated
Complementation Data
Completely duplicated
Partially duplicated
Molecular Data
Completely duplicated
Partially duplicated
Genes NOT Duplicated
Complementation Data
Molecular Data
Affected Genes Inferred by Location
    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations

    The Df(2L)Sd77 chromosome does not act as a dominant suppressor of telomeric silencing (assayed using the effect of the chromosome on the eye colour phenotype of flies carrying "P{wvar}KR3-2", a stable "brown-red" variant of the P{3'WP-2,wvar}2Lt insertion).

    Heterozygosity for this deletion suppresses the mutant ovarian phenotype of ovoD2.

    Stocks (2)
    Notes on Origin
    Balancer / Genotype Variants of the Aberration
    Separable Components
    Other Comments

    37C6-37D1 breakpoint is between position +49.2 and +51.4 on the Ddc map relative to the HpaI restriction site near the 3' end of Ddc.

    Synonyms and Secondary IDs (8)
    Reported As
    Name Synonyms
    Deficiency (2L) Segregation distorter
    Secondary FlyBase IDs
      References (22)