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Plasmid. 2013 Jan;69(1):1-15. doi: 10.1016/j.plasmid.2012.08.001. Epub 2012 Aug 30.

Transposable elements domesticated and neofunctionalized by eukaryotic genomes.

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  • 1Genetics Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.


Whole genome sequencing has provided a massive amount of information about the origin, diversity and genomic impact of repetitive DNA sequences (repDNA). Among the many classes of repDNA, prokaryotic transposable elements (TEs) replicate, move, amplify and accumulate in invaded genomes and thus represent the major force in restructuring host genes and genomes during evolution. Similar to retroviruses, autonomous TEs became part of the host genomes, and after their molecular domestication, they became functional genes (genomic fossils) in eukaryotic genomes. In this review, examples of the domestication events are discussed, some of which are known to be induced by biotic and abiotic stressors.

Copyright © 2012 Elsevier Inc. All rights reserved.

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