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Multiple independent chromosomal fusions accompanied the radiation of the Antarctic teleost genus Trematomus (Notothenioidei:Nototheniidae)

Archive ouverte | Auvinet, Juliette | CCSD

International audience. Background: Chromosomal rearrangements are thought to be an important driving force underlying lineage diversification, but their link to speciation continues to be debated. Antarctic teleost...

Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae

Archive ouverte | Auvinet, Juliette | CCSD

International audience. By their faculty to transpose, transposable elements are known to play a key role in eukaryote genomes, impacting both their structuration and remodeling. Their integration in targeted sites ...

Evolutionary history of chromosomal rearrangements linked with the mobilization of transposable elements within the Antarctic teleosts Nototheniidae : the adaptive radiation of the group “Trematomus”. Histoire évolutive des remaniements chromosomiques en liaison avec la mobilisation d'éléments transposables chez les téléostéens antarctiques Nototheniidae : la radiation adaptative du groupe " Trematomus "

Archive ouverte | Auvinet, Juliette | CCSD

In the last 20 My, multiple glacial-interglacial cycles led to strong and repeated environmental changes on the Antarctic continental shelf. In this changing environment, nototheniid fishes diversified through several rounds of sp...

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