retroposon


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ret·ro·pos·on

(ret'rō-pōz'on),
1. A transposition of sequences in a DNA that does not originate in the DNA but rather in an mRNA that is transcribed back into the genomic DNA by reverse transcription. Synonym(s): retrotransposon
2. A transposable element.
[retro- + L. pono, pp. positum, to place, + -on]

ret·ro·pos·on

(ret'rō-pō'zon)
A transposition of sequences in a DNA that does not originate in the DNA but in an mRNA that is transcribed back into the genomic DNA by reverse transcription.
[retro- + L. pono, pp. positum, to place, + -on]

retrotransposon, retroposon

a mobile sequence of DNA that transposes via a RNA intermediate.
References in periodicals archive ?
The scientists found all marsupials shared the same 10 retroposons, meaning they all descended form a common ancestor, reports The Courier Mail.
The concerted evolution of retroposon subfamilies provides evidence that subfamilies do not arise independently.
Additionally, the ID retroposon is present in both Hystricognathi and Sciurognathi (Sapienza and St.
Genomes of the other mammals, including human, tree shrew, bat, and rabbit (traditionally classified in a sister taxon to rodents), apparently do not contain this retroposon.
However, analysis of SINE and LINE retroposon families appears both less controversial among these types of analyses and in general more robust as a phylogenetic tool.
Use of the short retroposon B2 in the study of phylogenetic relationship in rodents.
coypus by reviewing the current data and establishing a case for the analysis of specific genomic retroposons, molecular fossils of the nutria's evolutionary descent.
MOLECULAR FOSSILS: RETROPOSONS AS PHYLOGENETIC TOOLS
Molecular evidence from retroposons that whales form a clade within even-toed ungulates.