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. 1986 Jan 24;14(2):675–691. doi: 10.1093/nar/14.2.675

Genomic and structural organization of Drosophila melanogaster G elements.

P P Di Nocera, F Graziani, G Lavorgna
PMCID: PMC339457  PMID: 3003691

Abstract

The properties and the genomic organization of G elements, a moderately repeated DNA family of D. melanogaster, are reported. G elements lack terminal repeats, generate target site duplications at the point of insertion and exhibit at one end a stretch of A residues of variable length. In a large number of recombinant clones analyzed G elements occur in tandem arrays, interspersed with specific ribosomal DNA (rDNA) segments. This arrangement results from the insertion of members of the G family within the nontranscribed spacer (NTS) of rDNA units. Similarity of the site of integration of G elements to that of ribosomal DNA insertions suggests that distinct DNA sequences might have been inserted into rDNA through a partly common pathway.

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Selected References

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