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How Athila retrotransposons survive in the Arabidopsis genome

Marco, Antonio and Marín, Ignacio (2008) 'How Athila retrotransposons survive in the Arabidopsis genome.' BMC Genomics, 9 (1). p. 219. ISSN 1471-2164

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Abstract

<h4>Background</h4>Transposable elements are selfish genetic sequences which only occasionally provide useful functions to their host species. In addition, models of mobile element evolution assume a second type of selfishness: elements of different families do not cooperate, but they independently fight for their survival in the host genome.<h4>Results</h4>We show that recombination events among distantly related Athila retrotransposons have led to the generation of new Athila lineages. Their pattern of diversification suggests that Athila elements survive in Arabidopsis by a combination of selfish replication and of amplification of highly diverged copies with coding potential. Many Athila elements are non-autonomous but still conserve intact open reading frames which are under the effect of negative, purifying natural selection.<h4>Conclusion</h4>The evolution of these mobile elements is far more complex than hitherto assumed. Strict selfish replication does not explain all the patterns observed.

Item Type: Article
Uncontrolled Keywords: Arabidopsis; DNA, Plant; Retroelements; Evolution, Molecular; Phylogeny; Recombination, Genetic; Genome, Plant; Expressed Sequence Tags; Models, Genetic
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Science and Health
Faculty of Science and Health > Life Sciences, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 23 Mar 2015 19:23
Last Modified: 15 Jan 2022 00:54
URI: http://repository.essex.ac.uk/id/eprint/8499

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