| Project/Area Number |
26440225
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Okinawa National College of Technology |
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Principal Investigator |
Isomura Naoko 沖縄工業高等専門学校, 生物資源工学科, 准教授 (90376989)
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| Co-Investigator(Kenkyū-buntansha) |
深見 裕伸 宮崎大学, 農学部, 准教授 (50402756)
守田 昌哉 琉球大学, 熱帯生物圏研究センター, 准教授 (80535302)
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| Research Collaborator |
Iwao Kenji 阿嘉島臨海研究所, 研究員
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 雑種体の妊性 / 雑種第二代 / 多種同調産卵 / 自家受精 / 雑種の妊性 / 精子選択 / 遺伝子浸透 / 雑種体の産卵 / 多種同調産卵の地域差 |
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| Outline of Final Research Achievements |
We elucidated hybridization and speciation of Acropora using Acropora intermedia and A. florida. Colonies with morphologies intermediate (suspected hybrids) between two target species were found in the fields where multi specific synchronous spawning occurred. These three species, A. interemedia, A. florida and suspected hybrids, may perform introgression each other because common haplotypes were found among them. Real F1 hybrids which were produced artificially were fertile, and they could cross both other hybrid and parent species. Furthermore, more than 90% self-fertilization was achieved in a real F1 hybrid. These results suggest that some products of interspecific hybridization may persist as the offspring of self-fertilizing F1 hybrids in the field where multi specific synchronous spawning occurs.
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