ArticleScientific reports2016
Involvement of hormones in olfactory imprinting and homing in chum salmon.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 42 citations in OpenAlex.
- Genetic Diversity and Runs of Homozygosity in Three Masu Salmon (Biomolecules · 2026Article
- Epigenetics in Captivity: Restoring Wild Phenotypes in Captive-Reared Salmonids.Evolutionary applications · 2026Article
- Messenger RNA transcription levels of neuronal soluble N-ethylmaleimide-sensitive factor attachment protein receptor complex components in the olfactory nerve system of the anadromous Pacific salmon, masu salmon Oncorhynchus masou.Fish physiology and biochemistry · 2024Article
- Whole-genome re-sequencing provides key genomic insights in farmed Arctic charr (Evolutionary applications · 2023Article
- Gene expression levels of synaptic exocytosis regulator synaptophysin in the brain and the olfactory organ of anadromous salmon.Fish physiology and biochemistry · 2022Article
- Biochemical indices, gene expression, and SNPs associated with salinity adaptation in juvenile chum salmon (PeerJ · 2022Article
- Population structure of chum salmon and selection on the markers collected for stock identification.Ecology and evolution · 2021Article
- Fish reproductive biology - Reflecting on five decades of fundamental and translational research.General and comparative endocrinology · 2021Review
- Neural pathways of olfactory kin imprinting and kin recognition in zebrafish.Cell and tissue research · 2021Review
- Differential expression of olfactory genes in Atlantic salmon (Ecology and evolution · 2019Article
- Article
- Functional divergence of thyrotropin beta-subunit paralogs gives new insights into salmon smoltification metamorphosis.Scientific reports · 2019Article
- Article
- Evidence of Olfactory Imprinting at an Early Life Stage in Pink Salmon (Oncorhynchus gorbuscha).Scientific reports · 2016Article
Corrections and comments
- Erratum issued
Authors and funding
11 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The olfactory hypothesis for salmon imprinting and homing to their natal stream is well known, but the endocrine hormonal control mechanisms of olfactory memory formation in juveniles and retrieval in adults remain unclear. In brains of hatchery-reared underyearling juvenile chum salmon (Oncorhynchus keta), thyrotropin-releasing hormone gene expression increased immediately after release from a hatchery into the natal stream, and the expression of the essential NR1 subunit of the N-methyl-D-aspartate receptor increased during downstream migration. Gene expression of salmon gonadotropin-releasing hormone (sGnRH) and NR1 increased in the adult chum salmon brain during homing from the Bering Sea to the natal hatchery. Thyroid hormone treatment in juveniles enhanced NR1 gene activation, and GnRHa treatment in adults improved stream odour discrimination. Olfactory memory formation during juvenile downstream migration and retrieval during adult homing migration of chum salmon might be controlled by endocrine hormones and could be clarified using NR1 as a molecular marker.
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