Transcriptomic Profiles of Rainbow Trout (Oncorhynchus mykiss) Selectively Bred for High and Low Fillet Yield.

ABSTRACT: The fillet yield phenotype is a trait that can be improved in aquaculture species through conventional selective breeding. This approach was applied to rainbow trout for three consecutive generations of selection to produce a high-yield line (HY) that exhibits 2.5 percentage points higher fillet yield compared to a low-yield line (LY). To characterize the genetic and physiological mechanisms contributing to the HY phenotype, transcriptomic analysis of liver and skeletal muscle was performed at three stages of development, 2 g, 60 g, and 300 g, which corresponded to 35, 208, and 277 days post-hatch. Functional analysis of differentially expressed genes (DEG) suggests that increased muscle yield in the HY line is partially driven by greater hyperplasia at 60 g; although, higher rates of prot

SUBMITTER: Mankiewicz JL 

PROVIDER: S-EPMC12198287 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature