A comparative analysis of the amounts and dynamics of transposable elements in natural populations of Drosophila melanogaster and Drosophila simulans.

Cristina Vieira 1, 2 Marie Fablet 1 Emmanuelle Lerat 1 Matthieu Boulesteix 1 Rita Rebollo 1 Nelly Burlet 1 Abdou Akkouche 1 Benjamin Hubert 1 Hussein Mortada 1 Christian Biémont 1
1 Eléments transposables, évolution, populations
GINSENG - Département génétique, interactions et évolution des génomes [LBBE]
2 BAMBOO - An algorithmic view on genomes, cells, and environments
Inria Grenoble - Rhône-Alpes, LBBE - Laboratoire de Biométrie et Biologie Evolutive - UMR 5558
Abstract : Genes are important in defining genetic variability, but they do not constitute the largest component of genomes, which in most organisms contain large amounts of various repeated sequences including transposable elements (TEs), which have been shown to account for most of the genome size. TEs contribute to genetic diversity by their mutational potential as a result of their ability to insert into genes or gene regulator regions, to promote chromosomal rearrangements, and to interfere with gene networks. Also, TEs may be activated by environmental stresses (such as temperature or radiation) that interfere with epigenetic regulation systems, and makes them powerful mutation agents in nature. To understand the relationship between genotype and phenotype, we need to analyze the portions of the genome corresponding to TEs in great detail, and to decipher their relationships with the genes. For this purpose, we carried out comparative analyses of various natural populations of the closely-related species Drosophila melanogaster and Drosophila simulans, which differ with regard to their TE amounts as well as their ecology and population size.
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https://hal.inria.fr/hal-00763500
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Submitted on : Tuesday, December 11, 2012 - 7:06:16 AM
Last modification on : Tuesday, June 11, 2019 - 3:20:52 PM

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Cristina Vieira, Marie Fablet, Emmanuelle Lerat, Matthieu Boulesteix, Rita Rebollo, et al.. A comparative analysis of the amounts and dynamics of transposable elements in natural populations of Drosophila melanogaster and Drosophila simulans.. Journal of Environmental Radioactivity, Elsevier, 2012, 113, pp.83-86. ⟨10.1016/j.jenvrad.2012.04.001⟩. ⟨hal-00763500⟩

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