Atlantic Salmon Pineal Organ Opsin Expression and Melatonin Synthesis Mapping

RNA sequencing and histological profiling data from the pineal organ of Atlantic salmon alevin and parr life stages. The dataset provides topographic mapping of nonvisual opsins and melatonin-synthesizing enzymes, authored by Christine Horne and last updated on 2026-05-25. It characterizes photoreceptors like exorhodopsin and parapinopsin b, linking them to the photic regulation of melatonin production.

Use Cases

• Study the photic regulation of melatonin synthesis based on the co-expression of opsins and enzymes like aanat2 and asmt.
• Analyze the spatial organization of photoreceptor cell types based on the topographic mapping of opsins like exorhodopsin and parapinopsin b.
• Investigate the potential photoisomerase function of retinal G-protein coupled receptor (rgr) based on its co-localization with other opsins.
• Examine photoreceptive activity in the choroid plexus based on the characterization of peropsin expression.

Strengths

• Includes data from two distinct life stages of Atlantic salmon: alevin and parr.
• Combines RNA sequencing analysis with histological profiling for spatial context.
• Maps expression of multiple specific genes, including exorhodopsin (exorh), parapinopsin b (ppb), aanat2, asmt, and rgr.

Limitations

• Dataset scale is limited to 16.5 KB, suggesting a small scope focused on specific gene expression profiles.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for statistical analyses.

Provenance

Source

Christine Horne via figshare

Collection Method

RNA sequencing and histological profiling

Freshness

Last updated 2026-05-25 04:34:34; freshness should be verified.