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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Molecular cloning of sequences from a Drosophila RNA polymerase II locus by P element transposon tagging.

We have identified a lethal mutation in the D. melanogaster RNA polymerase II locus, RpIIC4, caused by insertion of a transposable element associated with the phenomenon of hybrid dysgenesis (P element). Using previously cloned P element sequences as a hybridization probe we have isolated a hybrid lambda phage clone carrying a 10 kb genomic DNA fragment containing a 1.3 kb P element insert and flanking sequences from the RpII locus. The non-P sequences in this clone (lambda DmRpII-1) hybridize to polytene chromosome band region 10C, the cytogenetic location of RpIIC4, and revertants which lose the lethal RNA polymerase II mutation also lose P element sequences from the locus. We have generated several additional P element insertions into the locus and shown that they can occur at two or more different sites. These experiments illustrate that mutagenesis by P element insertion and use of cloned P DNA to retrieve the DNA sequences into which insertion has occurred may be a general method for cloning genetically defined loci in Drosophila.[1]

References

  1. Molecular cloning of sequences from a Drosophila RNA polymerase II locus by P element transposon tagging. Searles, L.L., Jokerst, R.S., Bingham, P.M., Voelker, R.A., Greenleaf, A.L. Cell (1982) [Pubmed]
 
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