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Updated: Aug 30, 2026

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Published on: October 17, 2017
Non-random association of transposable elements with duplicated genomic blocks in Arabidopsis thaliana
Austin L Hughes1, Robert Friedman, Vikram Ekollu
1Department of Biological Sciences, University of South Carolina, Coker Life Sciences Bldg, 700 Sumter St, Columbia, SC 29208, USA. austin@biol.sc.edu
Abstract:
The genome of Arabidopsis thaliana is known to contain numerous open reading frames apparently encoding transposases. In order to test the hypothesis that transposable elements have played a role in segmental duplication in this species, we compared the distribution of transposable elements with that of genomic windows that shared gene families to a greater extent than expected by chance. Phylogenetic analyses indicated that duplication of these segments occurred after the monocot-dicot divergence and probably after the eurosid I-eurosid II divergence. Known transposable elements were found to occur in putatively duplicated segments to a far greater extent than expected on the basis of their genome-wide distribution, suggesting that transposition may have played a role in segmental duplication in this species.
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