| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
In this study, three novel insulin-like peptides [ILP-1, ILP-2, and gonadulin (GON)] were found by transcriptome analysis in the kuruma prawn. Tissue-specific expression analyses on adults revealed sexual dimorphism and site-specific expression of these genes in the gonads: ILP1 in the ovary, ILP2 in the testis, and GON in the vas deferens. In contrast, no clear sex differences in gene expression were identified at least until 74 days after post-larval metamorphosis. Synthesized ILP1 and ILP2 had no effect on vitellogenin gene expression in the incubated ovary or hepatopancreas fragments.
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