retroposon


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retroposon

[‚re·trə′pō‚zän]
(genetics)
A mobile genetic element that transposes to or from a chromosomal site by reverse transcription from a ribonucleic acid intermediate.
References in periodicals archive ?
They analysed the genomes of the South American opossum and the Australian tammar wallaby, as well as the DNA of 20 other marsupials for a "jumping gene" called retroposons.
Even as the rest of an animal's genetic code can mutate, retroposons and their locations are stable, making them a reliable indicator of relationships between animals.
When retroposed in a germ cell genome, a retroposon becomes heritable and stable in a population.
Because retroposon families derive from transpositionally-active master genes, they conveniently reflect common ancestry.
A Distal Enhancer and an Ultraconserved Exon Are Derived from a Novel Retroposon," Nature 441 (2006): 87-90; M.
The sequences thus generated were assembled and analyzed to obtain contigs and singletons, which were further analyzed for the presence of molecular markers, unigenes, ESTs, transposons and retroposons.
Alu elements are 300 bp retroposons (RNA-mediated transposable elements) that are amplified in the primate genome by the process of retrotransposition (retroposition) (Figure 1).
The glycerol kinase gene family: structure of the Xp gene, and related intronless retroposons.