Transposable Elements and Teleost Migratory Behaviour
Transposable elements (TEs) represent a considerable fraction of eukaryotic genomes, thereby contributing to genome size, chromosomal rearrangements, and to the generation of new coding genes or regulatory elements. An increasing number of works have reported a link between the genomic abundance of...
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MDPI AG
2021-01-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/22/2/602 |
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| author | Elisa Carotti Federica Carducci Adriana Canapa Marco Barucca Samuele Greco Marco Gerdol Maria Assunta Biscotti |
| author_facet | Elisa Carotti Federica Carducci Adriana Canapa Marco Barucca Samuele Greco Marco Gerdol Maria Assunta Biscotti |
| author_sort | Elisa Carotti |
| collection | DOAJ |
| description | Transposable elements (TEs) represent a considerable fraction of eukaryotic genomes, thereby contributing to genome size, chromosomal rearrangements, and to the generation of new coding genes or regulatory elements. An increasing number of works have reported a link between the genomic abundance of TEs and the adaptation to specific environmental conditions. Diadromy represents a fascinating feature of fish, protagonists of migratory routes between marine and freshwater for reproduction. In this work, we investigated the genomes of 24 fish species, including 15 teleosts with a migratory behaviour. The expected higher relative abundance of DNA transposons in ray-finned fish compared with the other fish groups was not confirmed by the analysis of the dataset considered. The relative contribution of different TE types in migratory ray-finned species did not show clear differences between oceanodromous and potamodromous fish. On the contrary, a remarkable relationship between migratory behaviour and the quantitative difference reported for short interspersed nuclear (retro)elements (SINEs) emerged from the comparison between anadromous and catadromous species, independently from their phylogenetic position. This aspect is likely due to the substantial environmental changes faced by diadromous species during their migratory routes. |
| first_indexed | 2024-03-09T05:27:47Z |
| format | Article |
| id | doaj.art-dcdd9e33474d4b2c9782e20c1b0dfd07 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T05:27:47Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-dcdd9e33474d4b2c9782e20c1b0dfd072023-12-03T12:35:40ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-01-0122260210.3390/ijms22020602Transposable Elements and Teleost Migratory BehaviourElisa Carotti0Federica Carducci1Adriana Canapa2Marco Barucca3Samuele Greco4Marco Gerdol5Maria Assunta Biscotti6Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyDepartment of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyDepartment of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyDepartment of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyDepartment of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, ItalyDepartment of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, ItalyDepartment of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyTransposable elements (TEs) represent a considerable fraction of eukaryotic genomes, thereby contributing to genome size, chromosomal rearrangements, and to the generation of new coding genes or regulatory elements. An increasing number of works have reported a link between the genomic abundance of TEs and the adaptation to specific environmental conditions. Diadromy represents a fascinating feature of fish, protagonists of migratory routes between marine and freshwater for reproduction. In this work, we investigated the genomes of 24 fish species, including 15 teleosts with a migratory behaviour. The expected higher relative abundance of DNA transposons in ray-finned fish compared with the other fish groups was not confirmed by the analysis of the dataset considered. The relative contribution of different TE types in migratory ray-finned species did not show clear differences between oceanodromous and potamodromous fish. On the contrary, a remarkable relationship between migratory behaviour and the quantitative difference reported for short interspersed nuclear (retro)elements (SINEs) emerged from the comparison between anadromous and catadromous species, independently from their phylogenetic position. This aspect is likely due to the substantial environmental changes faced by diadromous species during their migratory routes.https://www.mdpi.com/1422-0067/22/2/602genome evolutiontransposable elementsenvironmental adaptationfish |
| spellingShingle | Elisa Carotti Federica Carducci Adriana Canapa Marco Barucca Samuele Greco Marco Gerdol Maria Assunta Biscotti Transposable Elements and Teleost Migratory Behaviour International Journal of Molecular Sciences genome evolution transposable elements environmental adaptation fish |
| title | Transposable Elements and Teleost Migratory Behaviour |
| title_full | Transposable Elements and Teleost Migratory Behaviour |
| title_fullStr | Transposable Elements and Teleost Migratory Behaviour |
| title_full_unstemmed | Transposable Elements and Teleost Migratory Behaviour |
| title_short | Transposable Elements and Teleost Migratory Behaviour |
| title_sort | transposable elements and teleost migratory behaviour |
| topic | genome evolution transposable elements environmental adaptation fish |
| url | https://www.mdpi.com/1422-0067/22/2/602 |
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