Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae
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 may lead to recombination mechanisms involved in chromosomal rearrangements. The Antarctic fish family Nototh...
Published in: | International Journal of Molecular Sciences |
---|---|
Main Authors: | , , , , , , |
Format: | Text |
Language: | English |
Published: |
MDPI
2019
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387122/ http://www.ncbi.nlm.nih.gov/pubmed/30736325 https://doi.org/10.3390/ijms20030701 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:6387122 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:6387122 2023-05-15T13:54:34+02:00 Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae Auvinet, Juliette Graça, Paula Ghigliotti, Laura Pisano, Eva Dettaï, Agnès Ozouf-Costaz, Catherine Higuet, Dominique 2019-02-06 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387122/ http://www.ncbi.nlm.nih.gov/pubmed/30736325 https://doi.org/10.3390/ijms20030701 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387122/ http://www.ncbi.nlm.nih.gov/pubmed/30736325 http://dx.doi.org/10.3390/ijms20030701 © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Article Text 2019 ftpubmed https://doi.org/10.3390/ijms20030701 2019-03-03T01:34:02Z 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 may lead to recombination mechanisms involved in chromosomal rearrangements. The Antarctic fish family Nototheniidae went through several waves of species radiations. It is a suitable model to study transposable element (TE)-mediated mechanisms associated to genome and chromosomal diversifications. After the characterization of Gypsy (GyNoto), Copia (CoNoto), and DIRS1 (YNoto) retrotransposons in the genomes of Nototheniidae (diversity, distribution, conservation), we focused on their chromosome location with an emphasis on the three identified nototheniid radiations (the Trematomus, the plunderfishes, and the icefishes). The strong intrafamily TE conservation and wide distribution across species of the whole family suggest an ancestral acquisition with potential secondary losses in some lineages. GyNoto and CoNoto (including Hydra and GalEa clades) mostly produced interspersed signals along chromosomal arms. On the contrary, insertion hot spots accumulating in localized regions (mainly next to centromeric and pericentromeric regions) highlighted the potential role of YNoto in chromosomal diversifications as facilitator of the fusions which occurred in many nototheniid lineages, but not of the fissions. Text Antarc* Antarctic PubMed Central (PMC) Antarctic The Antarctic International Journal of Molecular Sciences 20 3 701 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Article |
spellingShingle |
Article Auvinet, Juliette Graça, Paula Ghigliotti, Laura Pisano, Eva Dettaï, Agnès Ozouf-Costaz, Catherine Higuet, Dominique Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae |
topic_facet |
Article |
description |
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 may lead to recombination mechanisms involved in chromosomal rearrangements. The Antarctic fish family Nototheniidae went through several waves of species radiations. It is a suitable model to study transposable element (TE)-mediated mechanisms associated to genome and chromosomal diversifications. After the characterization of Gypsy (GyNoto), Copia (CoNoto), and DIRS1 (YNoto) retrotransposons in the genomes of Nototheniidae (diversity, distribution, conservation), we focused on their chromosome location with an emphasis on the three identified nototheniid radiations (the Trematomus, the plunderfishes, and the icefishes). The strong intrafamily TE conservation and wide distribution across species of the whole family suggest an ancestral acquisition with potential secondary losses in some lineages. GyNoto and CoNoto (including Hydra and GalEa clades) mostly produced interspersed signals along chromosomal arms. On the contrary, insertion hot spots accumulating in localized regions (mainly next to centromeric and pericentromeric regions) highlighted the potential role of YNoto in chromosomal diversifications as facilitator of the fusions which occurred in many nototheniid lineages, but not of the fissions. |
format |
Text |
author |
Auvinet, Juliette Graça, Paula Ghigliotti, Laura Pisano, Eva Dettaï, Agnès Ozouf-Costaz, Catherine Higuet, Dominique |
author_facet |
Auvinet, Juliette Graça, Paula Ghigliotti, Laura Pisano, Eva Dettaï, Agnès Ozouf-Costaz, Catherine Higuet, Dominique |
author_sort |
Auvinet, Juliette |
title |
Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae |
title_short |
Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae |
title_full |
Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae |
title_fullStr |
Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae |
title_full_unstemmed |
Insertion Hot Spots of DIRS1 Retrotransposon and Chromosomal Diversifications among the Antarctic Teleosts Nototheniidae |
title_sort |
insertion hot spots of dirs1 retrotransposon and chromosomal diversifications among the antarctic teleosts nototheniidae |
publisher |
MDPI |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387122/ http://www.ncbi.nlm.nih.gov/pubmed/30736325 https://doi.org/10.3390/ijms20030701 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387122/ http://www.ncbi.nlm.nih.gov/pubmed/30736325 http://dx.doi.org/10.3390/ijms20030701 |
op_rights |
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/ijms20030701 |
container_title |
International Journal of Molecular Sciences |
container_volume |
20 |
container_issue |
3 |
container_start_page |
701 |
_version_ |
1766260560422240256 |