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Temperature modulates the vitellogenesis progression in European eel

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Temperature modulates the vitellogenesis progression in European eel

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dc.contributor.author Mazzeo, Ilaria es_ES
dc.contributor.author Peñaranda, D.S. es_ES
dc.contributor.author Gallego Albiach, Victor es_ES
dc.contributor.author Baloche, Sylvie es_ES
dc.contributor.author Nourizadeh-Lillabadi, Rasoul es_ES
dc.contributor.author Tveiten, H. es_ES
dc.contributor.author Dufour, Sylvie es_ES
dc.contributor.author Asturiano Nemesio, Juan Francisco es_ES
dc.contributor.author Weltzien, Finn-Arne es_ES
dc.contributor.author Pérez Igualada, Luz María es_ES
dc.date.accessioned 2016-05-25T12:57:38Z
dc.date.available 2016-05-25T12:57:38Z
dc.date.issued 2014
dc.identifier.issn 0044-8486
dc.identifier.uri http://hdl.handle.net/10251/64705
dc.description.abstract [EN] Wild female European eels were matured with CPE (carp pituitary extract) under three thermal regimes, two of which were variable (T10–15 and T15–18, moving from 10 to 15 °C and from 15 to 18 °C, respectively) and one constant, at 18 °C (T18). Before and during hormonal treatment, the eels were sampled and biometric measurements were taken. Immunoassays of sex steroids and vitellogenin were performed, as well as qPCR analyses of gene expression (ovarian cyp19a1) and ovarian histology. Prior to the hormonal treatment, the silver eels which had been maintained at 18 °C showed lower 11-KT and E2 plasma levels compared to those maintained at 10 °C. In addition, in the early vitellogenic stage, the androgen and cyp19a1 levels were lower at 18 °C than at 10 °C. Both these results and the positive correlations found between GSI and 11-KT (at the PV stage) and between oocyte diameter and cyp19a1 levels (in the EV stage) suggest that early ovarian development is facilitated at low temperatures. Vitellogenesis was induced by CPE in all the thermal groups, but progression to the mid-vitellogenic stage was only observed after an accumulation of 900–1200 °D, at 15 or 18 °C, and progression to the late vitellogenic stage was only observed after an accumulation higher than 1300 °D, at 18 °C. Although temperature increased the rate of CPE-induced ovarian development, our results clearly indicate that this increase is not linear, but exponential, with acceleration in the increase of GSI at 18 °C from the mid-vitellogenic stage, or after an accumulation of 1300 °D. For the first time, a down-regulation of ovarian cyp19a1 caused by high temperatures in CPE-treated eels was observed. These results demonstrate that temperature can modulate eel ovarian development both before and after exogenous hormonal stimulations, and this knowledge could be used to manipulate the timing of vitellogenesis progression under laboratory conditions es_ES
dc.description.sponsorship This study was funded by the European Community's 7th Framework Programme under the Theme 2 "Food, Agriculture and Fisheries, and Biotechnology", grant agreement no.245257 (PRO-EEL). Ilaria Mazzeo and Victor Gallego had predoctoral grants from Generalitat Valenciana and Spanish Ministry of Science and Innovation (MICINN), respectively. David S. Penaranda has a postdoc grant from UPV (CEI-01-10), mobility grants from UPV (PAID-00-11) and the Research Council of Norway (EJ/hsm IS-SIP, 2009) and also has been supported by a contract co-financed by MICINN and UPV (PTA2011-4948-I). F.-A. Weltzien received funding from the Norwegian University of Life Sciences. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation UPV/CEI-01-10 es_ES
dc.relation UPV/PAID-00-11 es_ES
dc.relation MICINN/PTA2011-4948-I es_ES
dc.relation Research Council of Norway/EJ/hsm IS-SIP es_ES
dc.relation.ispartof Aquaculture es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Anguilla anguilla es_ES
dc.subject Thermal regime es_ES
dc.subject Sex maturation es_ES
dc.subject Sex steroids es_ES
dc.subject cyp19a1 es_ES
dc.subject.classification BIOLOGIA ANIMAL es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Temperature modulates the vitellogenesis progression in European eel es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.aquaculture.2014.07.020
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/245257 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal es_ES
dc.description.bibliographicCitation Mazzeo, I.; Peñaranda, D.; Gallego Albiach, V.; Baloche, S.; Nourizadeh-Lillabadi, R.; Tveiten, H.; Dufour, S.... (2014). Temperature modulates the vitellogenesis progression in European eel. Aquaculture. 434:38-47. https://doi.org/10.1016/j.aquaculture.2014.07.020 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://dx.doi.org/10.1016/j.aquaculture.2014.07.020 es_ES
dc.description.upvformatpinicio 38 es_ES
dc.description.upvformatpfin 47 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 434 es_ES
dc.relation.senia 268997 es_ES
dc.identifier.eissn 1873-5622
dc.contributor.funder European Commission
dc.contributor.funder Ministerio de Ciencia e Innovación
dc.contributor.funder Universitat Politècnica de València
dc.contributor.funder Research Council of Norway


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