transposon

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transposon

[¦tranz′pō‚zän]
(genetics)
A genetic element which comprises large discrete segments of deoxyribonucleic acid and is capable of moving from one chromosomal site to another in the same organism or in a different organism.
References in periodicals archive ?
Saccheri and colleagues found the transposable element in 105 of 110 wild-caught carbonaria moths and none of the 283 typica moths tested.
Many efforts for identify and detect small SwaI fragments tagging with the transposable elements were done without result, to solve this problem, partial digestions in wild type Psm chromosome were assayed.
There have been successive waves of retrotransposon activity in primate evolution, when a transposable element changed to become expressed and replicated itself throughout the genome until something turned it off," Salama said.
published a paper in 2013 titled "The Majority of Primate-Specific Regulatory Sequences Are Derived from Transposable Elements.
The various components of the total genome such as viruses, transposable elements, non-coding RNAs, and cells (with their constituent endosymbionts and epigenetically guided differentiation) as well as symbionts (with their epigenetic sculpting and pruning along and across their genealogy) are interactively charged with responding in an organized, reciprocating manner to environmental changes including behavioral adjustments.
It is accepted that C value changes are caused by changes in the number of transposable elements, in intron sizes, polyploidy, and DNA loss (Gregory 2005).
Promiscuous DNA: horizontal transfer of transposable elements and why it matters for eukary otic evolution.
Endoparasitic sequences: DNA sequences that are repeated multiple times in the genome; a type of transposable element.
Inviting instability: Transposable elements, double-strand breaks, and the maintenance of genome integrity.
Excision of transposable elements from the Chalcone isomerase and Dihydroflavonol 4-reductase genes may contribute to the variegation of the yellow-flowered carnation (Dianthus caryophyllus).
Geneticists and biologists from Europe, the US, and Brazil describe the repetitive content of eukaryotic genomes and the impact on genome structure, function, and evolution; the birth-and-death model as the mechanism guiding long-term evolution of multigene families; centromeres; telomere metabolism and its dynamics, with an emphasis on human biology; Drosophilia telomeres; satellite-DNA mediated effects on genome regulation; the evolutionary dynamics of transposable elements in eukaryotic genomes; short interspersed elements (SINEs) in genome evolution; unstable microsatellite repeats in the rapid evolution of coding and regulatory sequences; and chromosomal distribution and evolution of repetitive DNA in fish.
The aim of this investigation was thus to survey, via similarity searches, the current microsatellites of Haliotis midae to better understand the dynamics of these genomic features in this species; in particular their association to genes and transposable elements.