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Transcriptomics reveals that the caudal neurosecretory system in the olive flounder (Paralichthys olivaceus) is more responsive in bold individuals and to chronic temperature change

2021Journal article Restricted access
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dc.contributor.authorYuan, Mingzhe
dc.contributor.authorZhang, Xueshu
dc.contributor.authorLouro, Bruno
dc.contributor.authorLi, Xiaoxue
dc.contributor.authorCanario, Adelino
dc.contributor.authorLu, Weiqun
dc.date.accessioned2021-09-27T14:30:34Z
dc.date.available2021-09-27T14:30:34Z
dc.date.issued2021
dc.description.abstractIn farmed animals, personalities have demonstrated links to performance traits, health and welfare, disease susceptibility, and to coping with environmental stress. The teleost caudal neurosecretory system (CNSS) of the posterior spinal cord is involved in the regulation of the osmoregulatory and stress responses and can directly sense a hypothermal challenge via a transient receptor potential ion channel. Here we investigated the global transcriptomic response of the CNSS of shy and bold individuals of the olive flounder (Paralichthys olivaceus) acclimated to 18 degrees C and transferred to 12 degrees C (low temperature treatment, LT) or 24 degrees C (high temperature treatment, HT) for 2 h (acute) or 8 days (chronic) in relation to fish maintained at 18 degrees C (control). Overall, differential transcriptomic responses were stronger in bold individuals and induced by acute HT and chronic LT treatments. Acute HT induced innate immunity, circadian rhythm, and cellular stress response pathways and, specifically in bold individuals, a heightened response of molecular chaperones of cellular response to heat which may be related to the mechanisms of rescue of downregulated RNA splicing processes. Chronic LT also caused downregulation of innate immunity pathways as well as pathways related to cell division. In addition, the CNSS of bold individuals was enriched in pathways related to regulation of cell cycle, adaptive immune response, and apoptosis, while cellular metabolism pathways were downregulated in shy individuals. The putative temperature sensor genes Trpv1 and Trpa1 were upregulated, respectively, after acute HT and chronic LT treatments, but there was no indication of a specific neurosecretory response of the CNSS. While several of the observed transcriptomic responses to temperature appear to be shared by other tissues and species, it is also clear that bold and shy behavioural personalities show marked different responses, with bold individuals the most responsive. These results add to the knowledge base available on olive flounder aquaculture, indicating a differential role of the CNSS in the response to temperature change according to behavioural personalities.pt_PT
dc.description.sponsorshipNational Natural Science Foundation of China (NSFC) 31572599 41376134; China Scholarship Council; Portuguese Foundation for Science and Technology: UIDB/04326/2020.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.aquaculture.2021.737032pt_PT
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/10400.1/17161
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.subjectBehaviourpt_PT
dc.subjectPhenotypept_PT
dc.subjectCaudalpt_PT
dc.subjectNeurosecretory systempt_PT
dc.subjectCellular stresspt_PT
dc.subjectResponsept_PT
dc.subjectSpliceosomept_PT
dc.subjectThermalpt_PT
dc.titleTranscriptomics reveals that the caudal neurosecretory system in the olive flounder (Paralichthys olivaceus) is more responsive in bold individuals and to chronic temperature changept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.citation.startPage737032pt_PT
oaire.citation.titleAquaculturept_PT
oaire.citation.volume544pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameLouro
person.familyNameCanario
person.givenNameBruno
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0001-8164-581X
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id16028940200
person.identifier.scopus-author-id56568523700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication5f6e51ee-9113-469e-8b9e-f30f2d452521
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