Juan Antonio Valdés

Active nuclease inhibition over passive freezing secures the genomic archive of fish eye lenses

Abstract Fish eye lenses offer a chronological archive of individual life histories and preserve genomic DNA. However, integrating ecological and genetic data is hindered by post‐mortem nuclease degradation, and standardized DNA preservation protocols for this tissue remain undef...

Chronic Cortisol Exposure Reshapes Chromatin Accessibility and Gene Expression: Implications for Growth and Welfare in Rainbow Trout (Oncorhynchus mykiss)

Cortisol, the principal glucocorticoid in teleosts, coordinates the physiological response to stress by regulating metabolism, protein turnover, and growth. Although the molecular effects of acute cortisol exposure have been extensively characterized, the epigenomic mechanisms un...