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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. 219 - ?. ISSN 1471-2164

2008_BMCGenomics_Athila.pdf - Published Version
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BACKGROUND: 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. RESULTS: 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. CONCLUSION: 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, Evolution, Molecular, Expressed Sequence Tags, Genome, Plant, Models, Genetic, Phylogeny, Recombination, Genetic, Retroelements
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Science and Health > Life Sciences, School of
Depositing User: Antonio Marco
Date Deposited: 23 Mar 2015 19:23
Last Modified: 30 Sep 2019 23:15

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