Standard metabolic rate does not associate with age-at-maturity genotype in juvenile Atlantic salmon

Show full item record



Permalink

http://hdl.handle.net/10138/345999

Citation

Asheim , E R , Prokkola , J M , Morozov , S , Aykanat , T & Primmer , C R 2022 , ' Standard metabolic rate does not associate with age-at-maturity genotype in juvenile Atlantic salmon ' , Ecology and Evolution , vol. 12 , no. 1 . https://doi.org/10.1002/ece3.8408

Title: Standard metabolic rate does not associate with age-at-maturity genotype in juvenile Atlantic salmon
Author: Asheim, Eirik R.; Prokkola, Jenni M.; Morozov, Sergey; Aykanat, Tutku; Primmer, Craig R.
Contributor organization: Organismal and Evolutionary Biology Research Programme
Evolution, Conservation, and Genomics
Helsinki Institute of Sustainability Science (HELSUS)
Institute of Biotechnology
Biosciences
Date: 2022-01
Language: eng
Number of pages: 14
Belongs to series: Ecology and Evolution
ISSN: 2045-7758
DOI: https://doi.org/10.1002/ece3.8408
URI: http://hdl.handle.net/10138/345999
Abstract: Atlantic salmon (Salmo salar) is a species with diverse life-history strategies, to which the timing of maturation contributes considerably. Recently, the genome region including the gene vgll3 has gained attention as a locus with a large effect on Atlantic salmon maturation timing, and recent studies on the vgll3 locus in salmon have indicated that its effect might be mediated through body condition and accumulation of adipose tissue. However, the cellular and physiological pathways leading from vgll3 genotype to phenotype are still unknown. Standard metabolic rate is a potentially important trait for resource acquisition and assimilation and we hypothesized that this trait, being a proxy for the maintenance energy expenditure of an individual, could be an important link in the pathway from vgll3 genotype to maturation timing phenotype. As a first step to studying links between vgll3 and the metabolic phenotype of Atlantic salmon, we measured the standard metabolic rate of 150 first-year Atlantic salmon juveniles of both sexes, originating from 14 different families with either late-maturing or early-maturing vgll3 genotypes. No significant difference in mass-adjusted standard metabolic rate was detected between individuals with different vgll3 genotypes, indicating that juvenile salmon of different vgll3 genotypes have similar maintenance energy requirements in the experimental conditions used and that the effects of vgll3 on body condition and maturation are not strongly related to maintenance energy expenditure in either sex at this life stage.
Subject: genetics
life-history
maturation
physiology
standard metabolic rate
vgll3
INDIVIDUAL VARIATION
INTRASPECIFIC VARIATION
TRADE-OFFS
GROWTH
FISH
TEMPERATURE
SALAR
SIZE
VARIABILITY
STRATEGIES
1181 Ecology, evolutionary biology
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
Ecology_and_Evo ... y_genotype_in_juvenile.pdf 1.049Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record