Topic: mRNA-sequencing

Circadian clocks, endogenous oscillators that synchronize biological processes with the environmental day-night cycle, are entrained by external cues, notably sunlight. However, this mechanism is remarkably diverse across species. Mammals exhibit a hierarchical circadian system centered around the suprachiasmatic nucleus, while fish present a more distributed system with tissues directly responding to sunlight. Through mRNA-sequencing and promoter analysis, we explored the cellular transcriptional response to sunlight in zebrafish (D. rerio) and blind cavefish (P. andruzzii), the latter servin