A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\gwlSr6

General Information
SymbolDmel\gwlSr6SpeciesD. melanogaster
NameFlyBase IDFBal0218849
Feature typealleleAssociated geneDmel\gwl
Allele classhypomorphic allele - genetic evidence
MutagenX ray
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Description
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FB2013_03
FB2013_02
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In addition to the amino acid substitution, gwl[Sr6] has a K689STOP substitution.
Amino acid replacement: K689@.
Amino acid replacement: K97M.
Nucleotide substitution: A?T.
Cytology
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Statement
Reference
gwl[Sr6] homozygotes die as pupae (although this is believed to reflect a second lethal on its chromosome). gwl[Sr6] mutants are sterile in both males and females. gwl[Sr3]/gwl[6a] mutants exhibit mitotic defects, leading to an increase in the mitotic index with more cells in anaphase. Mutant neuroblasts show a high frequency of defective chromatin condensation. Some regions of chromatin appear undercondensed and other regions are overcondensed. In some cells the chromosomes are uniformly overcondensed, suggesting a lengthy pre-anaphase delay. gwl[Sr3]/gwl[Sr6] adults eclose (after a delay), with variably rough eyes, eroded wing margins, missing bristles and strongly reduced gonads, though viability is reduced. gwl[Sr6]/Df(3L)gwl[3b] mutants die predominantly in the pupal stage, and the rare escaper adults have rough eyes, ragged wings, cuticle defects, missing bristles, and are sterile. gwl[3a]/gwl[Sr6] mutants produce a gwl[Sr3] phenotype, i.e female fertility is restored. gwl[2]/gwl[Sr6] mutants produce a gwl[Sr3] phenotype, i.e female fertility is restored. gwl[6a]/gwl[Sr6] mutants produce a gwl[Sr3] phenotype, i.e female fertility is restored.
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Based on viability, the following gwl alleles can be ranked from strongest to weakest as follows: gwl[Sr3] > gwl[Sr3]/Df(3L)gwl[3b] > gwl[Sr6] > gwl[Sr6]/Df(3L)gwl[3b]> gwl[Sr3]/gwl[Sr6] > gwl[Sr18]/Df(3L)gwl[3b].
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Reported As
Symbol Synonym
Name Synonym
Scant revertant
Secondary FlyBase IDs
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Research paper
Archambault et al., 2007, PLoS Genet. 3(11): e200
Mutations in Drosophila Greatwall/Scant reveal its roles in mitosis and meiosis and interdependence with polo kinase. [FBrf0202769]