Seasonal and sex-related variations in serum steroid hormone levels in wild and farmed brown trout Salmo trutta L. in the north-west of Spain

Fregeneda-Grandes, Juan-Miguel; Hernández-Navarro, Salvador; Fernández-Coppel, Ignacio Alonso; Corrêa-Guimarães, Adriana; Ruíz-Potosme, Norlan; Navas-Gracia, Luis M.; Aller-Gancedo, José-Miguel; Martín-Gil, F.J.; Martín‐Gil, Jesús

doi:10.2166/wh.2013.086

Cited by 8 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alteration of the circadian rhythmicity occurring when food is continuously available in the hatchery environment can lead to maladaptative activity behavior of hatchery fish into the wild ( Alioravainen et al 2019 ). Finally, differential expression of genes implicated in hormonal production may also directly be related to the individual fitness as a seasonal production of gametes that mismatch the natural hatching period will result in a lower reproductive success ( Fregeneda-Grandes et al 2013 ; Christie et al 2014 ). Altogether, such differential gene expression observed between hatchery and wild fish in different salmonid species and in the absence of apparent genetic differences bring increasing support to the hypothesis that early-life rearing environment could have a significant impact on individual fitness.…”

Section: Discussionmentioning

confidence: 99%

Strong Parallel Differential Gene Expression Induced by Hatchery Rearing Weakly Associated with Methylation Signals in Adult Coho Salmon (O. kisutch)

Leitwein

Wellband

Cayuela

et al. 2022

Genome Biology and Evolution

View full text Add to dashboard Cite

Human activities and resource exploitation led to a massive decline of wild salmonid populations, consequently numerous conservation programs have been developed to supplement wild populations. However, many studies documented reduced fitness of hatchery-born relative to wild fish. Here, by using both RNA sequencing and Whole Genome Bisulfite Sequencing (WGBS), we show that of hatchery and wild born adult Coho Salmon (Oncorhynchus kisutch) originating from two previously studied river systems, early-life hatchery rearing environment induced significant and parallel gene expression differentiation is maintained until Coho come back to their natal river for reproduction. A total of 3,643 genes differentially expressed and 859 co-expressed genes were down-regulated in parallel in hatchery born fish from both rivers relative to their wild congeners. Among those genes, 26 displayed a significant relationship between gene expression and the median gene body methylation and 669 single CpG displayed a significant correlation between methylation level and the associated gene expression. The link between methylation and gene expression was weak suggesting that DNA methylation is not the only player in mediating hatchery-related expression differences. Yet, significant gene expression differentiation was observed despite 18 month spent in a common environment (i.e. the sea). Finally, the differentiation is observed in parallel in two different river system, highlighting the fact that early life environment may account for at least some of the reduced fitness of the hatchery salmon in the wild. These results illustrate the relevance and importance of considering both epigenome and transcriptome to evaluate the costs and benefits of large-scale supplementation programs.

show abstract

Section: Discussionmentioning

confidence: 99%

Strong Parallel Differential Gene Expression Induced by Hatchery Rearing Weakly Associated with Methylation Signals in Adult Coho Salmon (O. kisutch)

Leitwein

Wellband

Cayuela

et al. 2022

Genome Biology and Evolution

View full text Add to dashboard Cite

show abstract

“…In the case of the cortisol, these results are similar to other studies in S . trutta [ 36 ] where the cortisol levels did not change between sexes during the year. A similar pattern was obtained for the estradiol, another steroid hormone that can directly affect energy metabolism [ 37 ].…”

Section: Discussionmentioning

confidence: 99%

Differential metabolic profiles associated to movement behaviour of stream-resident brown trout (Salmo trutta)

et al. 2017

View full text Add to dashboard Cite

The mechanisms that can contribute in the fish movement strategies and the associated behaviour can be complex and related to the physiology, genetic and ecology of each species. In the case of the brown trout (Salmo trutta), in recent research works, individual differences in mobility have been observed in a population living in a high mountain river reach (Pyrenees, NE Spain). The population is mostly sedentary but a small percentage of individuals exhibit a mobile behavior, mainly upstream movements. Metabolomics can reflect changes in the physiological process and can determine different profiles depending on behaviour. Here, a non-targeted metabolomics approach was used to find possible changes in the blood metabolomic profile of S. trutta related to its movement behaviour, using a minimally invasive sampling. Results showed a differentiation in the metabolomic profiles of the trouts and different level concentrations of some metabolites (e.g. cortisol) according to the home range classification (pattern of movements: sedentary or mobile). The change in metabolomic profiles can generally occur during the upstream movement and probably reflects the changes in metabolite profile from the non-mobile season to mobile season. This study reveals the contribution of the metabolomic analyses to better understand the behaviour of organisms.

show abstract

“…The study of endocrinology in teleost fish has been fundamental for understanding the functional roles of hormones in biological systems. In recent years, the existence of a complex and infinite number of interactions between hormones and nerve structures has been demonstrated [5][6][7][8][9] . Reproduction is one of the most important biological processes of organisms since the survival and perpetuation of the species depend on it 1,10 .…”

Section: Introductionmentioning

confidence: 99%

Hormonal and neuroendocrine control of reproductive function in teleost fish.

Gabilondo

Hernández

Rodríguez

2021

View full text Add to dashboard Cite

Reproduction is one of the important physiological events for the maintenance of the species. Hormonal and neuroendocrine regulation of teleost requires multiple and complex interactions along the hypothalamic-pituitary-gonad (HPG) axis. Within this axis, gonadotropin-releasing hormone (GnRH) regulates the synthesis and release of gonadotropins, follicle-stimulating hormone (FSH), and luteinizing hormone (LH). Steroidogenesis drives reproduction function in which the development and differentiation of gonads. In recent years, new neuropeptides have become the focus of reproductive physiology research as they are involved in the different regulatory mechanisms of these species' growth, metabolism, and reproduction. However, especially in fish, the role of these neuropeptides in the control of reproductive function is not well studied. The study of hormonal and neuroendocrine events that regulate reproduction is crucial for the development and success of aquaculture.

show abstract

Seasonal and sex-related variations in serum steroid hormone levels in wild and farmed brown trout Salmo trutta L. in the north-west of Spain

Cited by 8 publications

References 3 publications

Strong Parallel Differential Gene Expression Induced by Hatchery Rearing Weakly Associated with Methylation Signals in Adult Coho Salmon (O. kisutch)

Strong Parallel Differential Gene Expression Induced by Hatchery Rearing Weakly Associated with Methylation Signals in Adult Coho Salmon (O. kisutch)

Differential metabolic profiles associated to movement behaviour of stream-resident brown trout (Salmo trutta)

Hormonal and neuroendocrine control of reproductive function in teleost fish.

Contact Info

Product

Resources

About