Molecular mechanisms of glycogen storage in the pacific oyster

2015 Fiscal Year Final Research Report

• Project/Area Number: 25850147
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Aquatic life science
• Research Institution: Japan Fisheries Research and Education Agency
• Principal Investigator: Mekuchi Miyuki 国立研究開発法人水産総合研究センター, 中央水産研究所, 研究員 (40594007)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 代謝 / グリコーゲン / マガキ / 生理学

Outline of Final Research Achievements

The Pacific oyster Crassostrea gigas accumulates reserves of glycogen in winter for gametogenesis and spawning in summer. After spawning during high-temperature summers, oysters become highly nutrient depleted; therefore, rapid glycogen synthesis and storage is important for recovery from these stresses. Despite the importance of glycogen storage, there is little detailed information on the underlying molecular mechanisms. Given this deficiency, we analyzed the gene expression profiles of oyster glycogen storage organs using next-generation sequencing. Pathway analysis revealed that glycogen storage has a relationship to insulin signaling pathway. This oyster insulin gene was a newly determined sequence.

Free Research Field

水産生理学