open access

https://hdl.handle.net/2115/43985

Molecular Aspects of Reproductive Neuroendocrinology in Salmon

英語

2007

Daya Publishing House

Pacific salmons are anadromous fish, which return to their natal river for spawning after oceanic migration. Accumulation of genetic information on hormone precursors and their receptors enabled us to examine various neuroendocrine events that regulate salmon reproduction including spawning migration at a molecular level. We mainly used two salmonid species: masu salmon (Oncorhynchus masou) as model fish and chum salmon (O. ketn) as wild fish, and assessed changes in expression of particular genes in relation to physiological events using a real-time PCR method. Regulatory mechanisms of hormonal gene expression were also examined to some extent, particularly of subunits of gonadotropins.

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