Effects of feeding level and sexual maturation on expression of genes regulating growth mechanisms in rainbow trout (Oncorhynchus mykiss)

Weber, Gregory M.; Ma, Hao; Birkett, Jill; Cleveland, Beth M.

doi:10.1016/j.aquaculture.2022.737917

Cited by 12 publications

(3 citation statements)

References 77 publications

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“…Morphology-or growth-related genes (in 11/18 blocks) included bdkrb2, acv2rb and gpr4 that are associated with (muscle) growth in Atlantic salmon or rainbow trout (Barría et al, 2019;Phelps, Jaffe, & Bradley, 2013;Weber, Ma, Birkett, & Cleveland, 2022;Yoshida, Lhorente, Carvalheiro, & Yáñez, 2017;Yoshida & Yáñez, 2022). Diet-or feeding-associated genes (in 7/18 blocks) included pomca (proopiomelanocortin a precursor, hypothalamic neuropeptide) and mc4r (melanocortin receptor 4), both in the melanocortin system and involved in appetite control and feeding of Atlantic salmon (e.g.…”

Section: Functional Relevance Of Identified Candidate Genesmentioning

confidence: 99%

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Miettinen,

Dannewitz,

Palm

et al. 2023

Preprint

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Insights into the genetic basis of local adaptation and drivers of population differentiation improve our understanding of evolution and the maintenance of biological diversity. Characterising adaptively important genetic variation also allows more efficient planning of conservation and management actions. We used a genome-wide SNP array to analyse the genetic population structure of a large Atlantic salmon (Salmo salar) population in the interconnected Tornio/Torne and Kalix River system of the Baltic Sea basin, and to identify genomic signatures of fine-scale selection within it. We identified signals of selection and genotype-environment associations (GEA) especially on chromosome (Chr) 9, including on a haploblock containing thesix6gene and other loci that have been earlier suggested to be adaptively important in salmonids. We also detected signals of selection in genome regions including other genes of ecological relevance, such as two known appetite-controlling genes in the melanocortin system (pomcaon Chr 9 andmc4ron Chr 14), and the maturation-associated genetaar13c-like(on Chr 21). Variation in these and other identified candidate genes may potentially reflect differential selective pressures experienced by salmon from different parts of the large river system, regarding traits related to e.g. vision, feeding and growth, age at maturity and/or migratory timing. This indicates a need for management strategies to consider ecologically important genomic regions such as these, in order to protect adaptive genetic diversity in wild salmon populations.

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Section: Functional Relevance Of Identified Candidate Genesmentioning

confidence: 99%

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Miettinen,

Dannewitz,

Palm

et al. 2023

Preprint

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“…The gametes are vital germplasm resources and genetic information transmitters of high-quality breeds [ 26 , 27 ]. Moreover, a recent study has demonstrated a shift of nutrients and energy from body growth to gonadal development during sexual maturation in salmonids [ 28 ]. Although FGF genes have been widely identified to play vital roles in gonad development in mammals and zebrafish [ 29 , 30 ], our knowledge of the expression and functions of FGF genes in gonad development is limited in non-model teleost fishes.…”

Section: Introductionmentioning

confidence: 99%

Identification, Characterization and Functional Analysis of Fibroblast Growth Factors in Black Rockfish (Sebastes schlegelii)

Jin

Yan

Wang

et al. 2023

IJMS

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Fibroblast growth factors (FGFs) are short polypeptides that play essential roles in various cellular biological processes, including cell migration, proliferation, and differentiation, as well as tissue regeneration, immune response, and organogenesis. However, studies focusing on the characterization and function of FGF genes in teleost fishes are still limited. In this study, we identified and characterized expression patterns of 24 FGF genes in various tissues of embryonic and adult specimens of the black rockfish (Sebates schlegelii). Nine FGF genes were found to play essential roles in myoblast differentiation, as well as muscle development and recovery in juvelines of S. schlegelii. Moreover, sex-biased expression pattern of multiple FGF genes was recorded in the species’ gonads during its development. Among them, expression of the FGF1 gene was recorded in interstitial and sertoli cells of testes, promoting germ-cell proliferation and differentiation. In sum, the obtained results enabled systematic and functional characterization of FGF genes in S. schlegelii, laying a foundation for further studies on FGF genes in other large teleost fishes.

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“…The majority of previous studies have shown that the energy and nutrients required for gonad development of fish are preferentially mobilized from endogenous lipid and protein stores of viscera or muscle adipose tissue [ 7 ]. It has been recognized that nutrient mobilization and repartition are the prerequisites for normal ovarian development and maturation of fish, which lay a solid foundation for the quantity and quality of offspring [ 8 ]. However, little is understood about the metabolic regulation of nutrient and energy mobilization in female rainbow trout during this period.…”

Section: Introductionmentioning

confidence: 99%

UPLC-QTOF/MS Metabolomics and Biochemical Assays Reveal Changes in Hepatic Nutrition and Energy Metabolism during Sexual Maturation in Female Rainbow Trout (Oncorhynchus mykiss)

Ding

Liu²,

Meng³

et al. 2022

Biology

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Mobilization and repartition of nutrients and energy are prerequisites for the normal sexual maturity of broodstock. However, there are few studies on the mechanisms of hepatic nutrients and energy metabolism during sexual maturation in female rainbow trout (Oncorhynchus mykiss). This study investigated hepatic metabolite changes and explored the potential nutritional regulation mechanism between mature and immature female rainbow trout by combining UPLC-QTOF/MS metabolomics and biochemical assays. It was observed that hepatic biochemical assays differed considerably between the two groups, such as glucose, triglycerides, hexokinase, lipase, and aspartate aminotransferase. Liver metabolomics showed that various differential metabolites involved in amino acid and lipid metabolism markedly increased, suggesting the enhancement of lipid metabolism and amino acid anabolism in the liver provides the necessary material basis for ovarian development. Meanwhile, glycogen catabolism and glycolysis hold the key to maintaining organismal energy homeostasis with normal sexual maturation of female rainbow trout. Overall, the results from this study suggested that the liver undergoes drastic reprogramming of the metabolic profile in response to mobilization and repartition of nutrients and energy during the sexual maturation of female rainbow trout. This study further deepened the understanding of the reproductive biology of rainbow trout, and provided the theoretical basis and practical ramifications for nutritional requirements of breeding high-quality broodstock in the artificial propagation of rainbow trout.

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Effects of feeding level and sexual maturation on expression of genes regulating growth mechanisms in rainbow trout (Oncorhynchus mykiss)

Cited by 12 publications

References 77 publications

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Loci associated with maturation, migration and appetite control are linked with signals of fine-scale local selection in a large Atlantic salmon population

Identification, Characterization and Functional Analysis of Fibroblast Growth Factors in Black Rockfish (Sebastes schlegelii)

UPLC-QTOF/MS Metabolomics and Biochemical Assays Reveal Changes in Hepatic Nutrition and Energy Metabolism during Sexual Maturation in Female Rainbow Trout (Oncorhynchus mykiss)

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