ArticleEvolutionary applications2013
Stocking impacts the expression of candidate genes and physiological condition in introgressed brook charr (Salvelinus fontinalis) populations.
Article in Evolutionary applications, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 27 citations in OpenAlex.
- Environment and genotype predict the genomic nature of domestication of salmonids as revealed by gene expression.Proceedings. Biological sciences · 2022Review
- Past, present and future contributions of evolutionary biology to wildlife forensics, management and conservation.Evolutionary applications · 2020Article
- Multiple decades of stocking has resulted in limited hatchery introgression in wild brook trout (Evolutionary applications · 2020Article
- Limited hatchery introgression into wild brook trout (Evolutionary applications · 2018Article
- Impact of supplementation on deleterious mutation distribution in an exploited salmonid.Evolutionary applications · 2018Article
- Supplementation stocking of Lake Trout (Salvelinus namaycush) in small boreal lakes: Ecotypes influence on growth and condition.PloS one · 2018Article
- Genetic differences between wild and hatchery-bred brown trout (Ecology and evolution · 2017Article
- Ancestry and adaptive evolution of anadromous, resident, and adfluvial rainbow trout (Evolutionary applications · 2017Article
- Genetic and phenotypic changes in an Atlantic salmon population supplemented with non-local individuals: a longitudinal study over 21 years.Proceedings. Biological sciences · 2015Article
- Loss of genetic integrity in wild lake trout populations following stocking: insights from an exhaustive study of 72 lakes from Québec, Canada.Evolutionary applications · 2014Article
- Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency.Ecology and evolution · 2013Article
- Strain specific genotype-environment interactions and evolutionary potential for body mass in brook charr (Salvelinus fontinalis).G3 (Bethesda, Md.) · 2013Article
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Authors and funding
3 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Translocation of plants and animal populations between environments is one of the major forms of anthropogenic perturbation experienced by pristine populations, and consequently, human-mediated hybridization by stocking practices between wild and exogenous conspecifics is of increasing concern. In this study, we compared the expression of seven candidate genes involved in multifactorial traits and regulatory pathways for growth as a function of level of introgressive hybridization between wild and domestic brook charr to test the null hypothesis of no effect of introgression on wild fish. Our analyses revealed that the expression of two of the genes tested, cytochrome c oxidase VIIa and the growth hormone receptor isoform I, was positively correlated with the level of introgression. We also observed a positive relationship between the extent of introgression and physiological status quantified by the Fulton's condition index. The expression of other genes was influenced by other variables, including year of sampling (reflecting different thermal conditions), sampling method and lake of origin. This is the first demonstration in nature that introgression from stocked populations has an impact on the expression of genes playing a role in important biological functions that may be related with fitness in wild introgressed populations.
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