Acronym MATGEN
Category
Aquaculture
Title Sexual maturation in salmon - Causal genetic variants and the link between epigenetic and genetic contribution to the trait Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Anna Troedsson-Wargelius Coordinator email anna.wargelius@imr.no
Coordinator institution
IMR - Institute of Marine Research (Norway)
Institutions involved
NA
Start year 2016 End year 2021 Funding (€) € 870,500 Website https://prosjektbanken.forskningsradet.no/project/FORISS/254783?Kilde=FORISS&distribution=Ar&chart=bar&calcType=funding&Sprak=no&sortBy=date&sortOrder=desc&resultCount=30&offset=240&ProgAkt.3=HAVBRUK2-Stort+program+for+havbruksforskning Summary This project will elucidate the link between the genetic prerequisite for age at maturation and how environmental cues can modulate or overrun this trait. Recent results show that one single locus can largely determine sea age at maturation in Atlantic salmon. This has opened a door to directly investigate the link between the genetic and the environmental regulation of the age at maturity trait in salmon.
Understanding the age of maturation trait in salmon is a pre-requisite for sustainable farming; early maturation causes significant impacts on: (i) fish welfare through increased susceptibility to disease and hypo-osmoregulatory problems in sea cages; (ii) production losses caused by mortality, impaired growth, and down-grading at harvest; (iii) genetic interactions with wild fish, since escaped early maturing fish have a lower risk for mortality before succeeding to spawn. We recently described a selective sweep locus which strongly influences sea age at maturity, which encodes three genes, with the vgll3 gene showing the strongest signature of selection. However, the causative genetic variant(s) at this locus are unknown. This project aims to find the causative variant and link this/these genetic variants to either protein function or gene expression control.
Keywords
Salmon;
Fish reproduction;
Fish;
Genetic;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
