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Background Transposable elements (TEs) are common and often present with high copy numbers in cellular genomes. Unlike in cellular organisms, TEs were previously thought to be either rare or absent in viruses. Almost all reported TEs display only one or two copies per viral genome. In addition, the discovery of pandoraviruses with genomes up to 2.5-Mb emphasizes the need for biologists to rethink...
Background PHIS transposon superfamily belongs to DNA transposons and includes PIF/Harbinger, ISL2EU, and Spy transposon groups. These three groups have similar DDE domain-containing transposases; however, their coding capacity, species distribution, and target site duplications (TSDs) are significantly different. Results In this study, we systematically identified and analyzed PHIS transposons...
Background Horizontal transfer (HT) of transposable elements (TEs) into a new genome is considered as an important force to drive genome variation and biological innovation. However, most of the HT of DNA transposons previously described occurred between closely related species or insects. Results In this study, we carried out a detailed analysis of four DNA transposons, which were found in the...
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