Telomere Length as a Biomarker for Monitoring Wild Populations of the Sea Urchin Paracentrotus lividus
| Autor: | Sylvain Couvray, Marion Lechable, Sandrine Gaillard, Stéphane Coupé, Nathalie Prévot d'Alvise |
|---|---|
| Přispěvatelé: | Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN), Institut Océanographique Paul Ricard, Plateforme Technologique BioTechServices, Université de Toulon (UTLN), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Future studies Population Aquatic Science Biology 01 natural sciences Paracentrotus lividus Conserved sequence Life history theory biology.animal 14. Life underwater education Sea urchin ComputingMilieux_MISCELLANEOUS education.field_of_study 010604 marine biology & hydrobiology [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biology 04 agricultural and veterinary sciences biology.organism_classification Telomere [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics Evolutionary biology Eukaryotic chromosome fine structure 040102 fisheries 0401 agriculture forestry and fisheries [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
| Zdroj: | Journal of Shellfish Research Journal of Shellfish Research, National Shellfisheries Association, 2019, 38 (3), pp.665. ⟨10.2983/035.038.0318⟩ Journal of Shellfish Research, 2019, 38 (3), pp.665. ⟨10.2983/035.038.0318⟩ |
| ISSN: | 0730-8000 |
| Popis: | Telomeres are evolutionarily conserved sequences capping the ends of linear eukaryotic chromosomes that usually shorten at each cell division, as well as under stressful living conditions. For this reason, telomere length (TL) has been considered as a proxy of age and stress for decades. Globally, most ecological and biology researches have used TL to assess the impact of specific life history traits on organisms life expectancies and persistence of populations. Nevertheless, to our knowledge, ecological studies that consider TL as an approximation of temporal cohorts are rare. In many population monitoring studies, however, knowledge about temporal cohorts are lacking, although they would provide comprehensive information on the natural processes underlying population dynamics. With this in mind, a quantitative PCR approach was used to measure the relative length of telomere sequences of DNA extracted from Paracentrotus lividus sea urchin. The species undergoes intensive harvesting, and some populations are under surveillance in the Mediterranean basin. The results showed that P. lividus experiences a shortening of telomeres with age, suggesting that according to this hypothesis, TL would probably be a relevant biomarker, which could reveal population differences based on their demographic structure, and differential susceptibility to pollution according to size. Future studies are still needed to define the accuracy of TL in detecting specific temporal cohorts in this species and to determine whether the TL should be considered locally in population surveillance studies. |
| Databáze: | OpenAIRE |
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