How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review

This review revisits 20 years of collaborative studies that were pursued with Louis Bernatchez who sadly passed away in October 2023. With him, we explored the phenotypic plasticity of brook charr by combining ecophysiology, genetics, genomics, and more recently epigenetics. Over the years, we condu...

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Main Authors: Céline Audet, Dany Garant, Amélie Crespel, Marie Vagner
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Fish Science
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Online Access:https://www.frontiersin.org/articles/10.3389/frish.2025.1525181/full
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author Céline Audet
Dany Garant
Amélie Crespel
Marie Vagner
author_facet Céline Audet
Dany Garant
Amélie Crespel
Marie Vagner
author_sort Céline Audet
collection DOAJ
description This review revisits 20 years of collaborative studies that were pursued with Louis Bernatchez who sadly passed away in October 2023. With him, we explored the phenotypic plasticity of brook charr by combining ecophysiology, genetics, genomics, and more recently epigenetics. Over the years, we conducted extensive studies on brook charr, focusing on metabolism, stress response, growth regulation, and temperature tolerance across various strains. Our research highlighted the remarkable diversity in physiological responses to temperature and salinity conditions, along with significant differences in the heritability of key traits across different strains and life stages. We studied stages from yolk-sac fry to reproductive adults, compared freshwater residents and anadromous fish, and recently showed how epigenetics affects the physiological and transcriptomic responses of progeny to temperature conditions. This review highlights the incredible physiological plasticity of brook charr and presents future research avenues that will lead to a better understanding of how the species may face challenges related to global changes.
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series Frontiers in Fish Science
spelling doaj-art-d84534271a7741aea3e07d4f35f1bd8f2025-08-20T03:12:53ZengFrontiers Media S.A.Frontiers in Fish Science2813-90972025-02-01310.3389/frish.2025.15251811525181How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical reviewCéline Audet0Dany Garant1Amélie Crespel2Marie Vagner3Institut des sciences de la mer, Université du Québec à Rimouski, Rimouski, QC, CanadaDépartement de Biologie, Université de Sherbrooke, Sherbrooke, QC, CanadaDepartment of Biology, University of Turku, Turku, FinlandCNRS, Université de Brest, Ifremer, IRD, LEMAR, Plouzané, FranceThis review revisits 20 years of collaborative studies that were pursued with Louis Bernatchez who sadly passed away in October 2023. With him, we explored the phenotypic plasticity of brook charr by combining ecophysiology, genetics, genomics, and more recently epigenetics. Over the years, we conducted extensive studies on brook charr, focusing on metabolism, stress response, growth regulation, and temperature tolerance across various strains. Our research highlighted the remarkable diversity in physiological responses to temperature and salinity conditions, along with significant differences in the heritability of key traits across different strains and life stages. We studied stages from yolk-sac fry to reproductive adults, compared freshwater residents and anadromous fish, and recently showed how epigenetics affects the physiological and transcriptomic responses of progeny to temperature conditions. This review highlights the incredible physiological plasticity of brook charr and presents future research avenues that will lead to a better understanding of how the species may face challenges related to global changes.https://www.frontiersin.org/articles/10.3389/frish.2025.1525181/fullphenotypic plasticitydevelopmentgrowthstressmetabolismsex-linked traits
spellingShingle Céline Audet
Dany Garant
Amélie Crespel
Marie Vagner
How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review
Frontiers in Fish Science
phenotypic plasticity
development
growth
stress
metabolism
sex-linked traits
title How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review
title_full How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review
title_fullStr How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review
title_full_unstemmed How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review
title_short How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review
title_sort how genomic and environmental relationships shape phenotypic plasticity in brook charr salvelinus fontinalis an historical review
topic phenotypic plasticity
development
growth
stress
metabolism
sex-linked traits
url https://www.frontiersin.org/articles/10.3389/frish.2025.1525181/full
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