| Co-Investigator(Kenkyū-buntansha) |
吉村 仁 静岡大学, 創造科学技術大学院, 教授 (10291957)
佐藤 令一 東京農工大学, (連合)農学研究科(研究院), 教授 (30235428)
松浦 健二 京都大学, 農学研究科, 教授 (40379821)
野村 昌史 千葉大学, 大学院園芸学研究科, 准教授 (50228368)
天竺桂 弘子 東京農工大学, (連合)農学研究科(研究院), 教授 (80434190)
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| Budget Amount *help |
¥40,040,000 (Direct Cost: ¥30,800,000、Indirect Cost: ¥9,240,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2016: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2015: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
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| Outline of Final Research Achievements |
In polyembryonic parasitoids, it was revealed that sexual differences exist not only in attacking and increasing in soldier larvae but also in humoral toxic factors. As a result of transcriptome analysis and mass spectrometry of polyembryos, proteins involved in proteolysis were identified as factors secreted by the polyembryos. Regarding the mechanism of female-specific increase in soldier larvae, the venom injected by the heterospecific parasitoid into the same host during egg laying induces both germ cell death and secondary vasa down-regulation, or both of cell death and vasa down-regulation. That is, it was clarified that the increase in soldier larvae is caused by the fate conversion of the embryo.
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