Transcriptional response of yellow perch to changes in ambient metalconcentrations—A reciprocal field transplantation experiment

DC FieldValueLanguage
dc.contributor.authorBougas, Bérénice-
dc.contributor.authorNormandeau, Éric-
dc.contributor.authorGrasset, Julie-
dc.contributor.authorDefo, Michel Amery-
dc.contributor.authorCampbell, P. G. C. (Peter Gerald Cadogan)-
dc.contributor.authorCouture, Patrice-
dc.contributor.authorBernatchez, Louis-
dc.coverage.spatialQuébec (Province)fr_CA
dc.description.abstractRecent local adaptation to pollution has been evidenced in several organisms inhabiting environments heavily contaminated by metals. Nevertheless, the molecular mechanisms underlying adaptation to high metal concentrations are poorly understood, especially in fishes. Yellow perch (Perca flavescens) populations from lakes in the mining area of Rouyn-Noranda (QC, Canada) have been faced with metal contamination for about 90 years. Here, we examine gene transcription patterns of fish reciprocally transplanted between a reference and a metal-contaminated lake and also fish caged in their native lake. After four weeks, 111 genes were differentially transcribed in metal-naïve fish transferred to the metalcontaminated lake, revealing a plastic response to metal exposure. Genes involved in the citric cycle and beta-oxidation pathways were under-transcribed, suggesting a potential strategy to mitigate the effects of metal stress by reducing energy turnover. However, metal-contaminated fish transplanted to the reference lake did not show any transcriptomic response, indicating a reduced plastic response capability to sudden reduction in metal concentrations. Moreover, the transcription of other genes, especially ones involved in energy metabolism, was affected by caging. Overall, our results highlight environmental stress response mechanisms in yellow perch at the transcriptomic level and support a rapid adaptive response to metal exposure through genetic assimilation.fr_CA
dc.description.abstractKeywords: Transcriptome Yellow perch Metal exposure Reciprocal transplantation Cagingfr_CA
dc.titleTranscriptional response of yellow perch to changes in ambient metalconcentrations—A reciprocal field transplantation experimentfr_CA
dc.typeCOAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherche-
dcterms.bibliographicCitationAquatic Toxicology, Vol. 173, 132-142 (2016)fr_CA
dc.audienceProfesseurs (Enseignement supérieur)fr_CA
dc.subject.rvmPolluants de l'eaufr_CA
dc.subject.rvmMétaux -- Aspect de l'environnementfr_CA
rioxxterms.versionVersion of Recordfr_CA
rioxxterms.project.funder_nameNatural Sciences and Engineering Research Council of Canadafr_CA
Collection:Articles publiés dans des revues avec comité de lecture

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