Mobilization of retrotransposons as a cause of chromosomal diversification and rapid speciation: the case for the Antarctic teleost genus Trematomus

• Published in: BMC Genomics
• Main Authors: Auvinet, J., Graça, P., Belkadi, L., Petit, L., Bonnivard, E., Dettaï, Agnès, Detrich, H William, Ozouf-Costaz, C., Higuet, Dominique
• Other Authors: Evolution Paris Seine, Université des Antilles et de la Guyane (UAG)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Evolution Paris-Seine, Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Université Sorbonne Paris Cité (USPC)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Signalisation et Pathogénèse, Institut Pasteur Paris (IP)-Centre National de la Recherche Scientifique (CNRS), Imagerie Cellulaire et Cytométrie de Flux IBPS (IBPS-IP), Institut de Biologie Paris Seine (IBPS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Northeastern University's Marine Science Center, Northeastern University Boston, This work, chromosome collection and preparation received financial support from the Institut Polaire français Paul-Emile Victor (IPEV) and the U.S. National Science Foundation (NSF) (programs Icthyologie côtière en Terre Adélie (ICOTA 1996-2008) and Ressources Ecologiques et Valorisation par un Observatoire à Long terme en Terre Adélie (REVOLTA 2010-2014)); of Collaborative East Antarctic Marine Census for the Census of Antarctic Marine Life (CAML-CEAMARC 2007-2008, IPY project no. 53) cruise on board the RV Aurora Australis; of International Collaborative Expedition to collect and study Fish Indigenous to Sub-antarctic Habitats, Atlantic sector of the Southern Ocean (ICEFISH 2004), on board the R.V. Nathaniel Palmer (granted by National Science Foundation grant OPP 01-32032), of POissons de KERguelen, shelf of Kerguelen-Heard islands (POKER 2006, 2010, 2013) on board the “Austral” trawler (supported by the French National Research Agency ANR, and Ministry of Agriculture and Fisheries). The Université Pierre et Marie Curie (UPMC), the Centre National de la Recherche Scientifique (CNRS), the Museum National d’Histoire Naturelle (MNHN) and the Australian Antarctic Division (AAD) provided financial supports. HWD was also supported by the U.S. National Science Foundation (NSF) grant PLR-1444167. This is contribution 365 from the Marine Science Center at Northeastern University.
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2018
• Subjects: Chomosomal rearrangements; DIRS1 insertion hot spots; FISH; Nototheniidae; Retrotransposons; Speciation; Trematomus; [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE]; Antarctic; The Antarctic; Antarc*
• Online Access: https://hal.sorbonne-universite.fr/hal-01921023; https://hal.sorbonne-universite.fr/hal-01921023/document; https://hal.sorbonne-universite.fr/hal-01921023/file/document%2815%29.pdf; https://doi.org/10.1186/s12864-018-4714-x

International audience The importance of transposable elements (TEs) in the genomic remodeling and chromosomal rearrangements that accompany lineage diversification in vertebrates remains the subject of debate. The major impediment to understanding the roles of TEs in genome evolution is the lack of comparative and integrative analyses on complete taxonomic groups. To help overcome this problem, we have focused on the Antarctic teleost genus Trematomus (Notothenioidei: Nototheniidae), as they experienced rapid speciation accompanied by dramatic chromosomal diversity. Here we apply a multi-strategy approach to determine the role of large-scale TE mobilization in chromosomal diversification within Trematomus species.