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. 1976 Feb 2;143(3):261-8.
doi: 10.1007/BF00269402.

Instability at the bobbed locus following magnification in Drosophila melanogaster

D Locker

Instability at the bobbed locus following magnification in Drosophila melanogaster

D Locker. Mol Gen Genet. .

Abstract

Newly magnified bobbed loci, combined with bb+ or bb loci, are in certain cases unstable. This may lead either to a reversion to the original bobbed mutation, or to lethal bobbed mutation. We name this instability "modification". Modification occurs very early during the first divisions following fecondation of eggs, in embryos heterozygous for a magnified bobbed locus and a bb+ or bb locus. This phenomenon of modification is consistent with the model proposed by Ritossa (1972) to account for the phenomenom of magnification.

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