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| Laporte, M.; Le Luyer, Jeremy; Rougeux, C.; Dion-côté, A.-m.; Krick, M.; Bernatchez, L.. |
| The genomic shock hypothesis stipulates that the stress associated with divergent genome admixture can cause transposable element (TE) derepression, which could act as a postzygotic isolation mechanism. TEs affect gene structure, expression patterns, and chromosome organization and may have deleterious consequences when released. For these reasons, they are silenced by heterochromatin formation, which includes DNA methylation. Here, we show that a significant proportion of TEs are differentially methylated between the “dwarf” (limnetic) and the “normal” (benthic) whitefish, two nascent species that diverged some 15,000 generations ago within the Coregonus clupeaformis species complex. Moreover, TEs are overrepresented among loci that were demethylated in... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00586/69819/67709.pdf |
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