| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
In this study, genes involved in olfactory imprinting (OI) and memory retrieval (OMR) were searched in the chum salmon olfactory center. Transcriptome analyses using next-generation sequencer were carried out on olfactory center of the seaward migration (OI period) juveniles and the homeward migration (OMR period) adult salmon. In each period of seaward and homeward migration, these genes indicates the minimum expression at the silent stage, and indicated expression higher than 10 fold from silent stage at active stage. In this selective condition, the same genes were not contained in both selected transcripts. The molecules of pre-synaptic vesicle exocytosis, cell-growth/differentiation, etc. were included in the OI-related candidate genes. On the other hand, some neurotransmitter receptors were included in the OMR-related candidate genes. Our results suggest that different gene groups are mainly functioning to OI and OMR in Pacific salmon.
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