GWAS on early sexual maturation across freshwater and seawater environments in domesticated Lochy strain of Atlantic salmon.

ABSTRACT:

Background

Early sexual maturation is a challenging obstacle to overcome in Atlantic salmon farming. This trait primarily affects males and occurs in both freshwater fish farms and sea culture cages during the fattening phase. Current strategies for preventing early maturation include a combination of genetic selection and management practices. However, the genetic architecture of early maturation appears to vary across populations, strains and environments. Our study aimed to elucidate the genetic architecture of early maturation in the Lochy strain of Atlantic salmon using genome-wide SNP panels. This European-origin strain grows rapidly but is prone to high rates of precocious male maturation if not properly managed.

Results

We report two genome-wide association (GWAS) re

SUBMITTER: Rivera P 

PROVIDER: S-EPMC12784476 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature