| Project/Area Number |
18KK0173
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| Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 39:Agricultural and environmental biology and related fields
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| Research Institution | Kobe University |
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Principal Investigator |
Mori Naoki 神戸大学, 農学研究科, 教授 (60230075)
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| Co-Investigator(Kenkyū-buntansha) |
大田 正次 福井県立大学, 生物資源学部, 教授 (80176891)
竹中 祥太朗 龍谷大学, 農学部, 講師 (20757736)
丹野 研一 龍谷大学, 文学部, 准教授 (10419864)
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| Project Period (FY) |
2018-10-09 – 2025-03-31
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| Project Status |
Completed (Fiscal Year 2024)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2022: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 野生コムギ / 自然集団 / 集団内変異 / 擬似自然集団 / 遺伝的多様性 / 葉緑体DNA / 種子休眠性 / 野生エンマーコムギ / 遺伝資源 / 栽培化 / 疑似自然集団 |
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| Outline of Final Research Achievements |
Southern Turkey is known as the region where wheat was domesticated, but little has known about the genetic diversity within natural populations of wild wheat species. In this study, as an international collaboration with Cukurova University in the Republic of Turkey, we conducted the following two studies: 1) We created and maintained a group of “pseudo-natural populations,” which were randomly selected from natural populations, to establish a basis for sustainable and developmental use of genetic diversity within natural populations; 2) Genetic variation within wild wheat populations was investigated in terms of seed dormancy, an adaptive trait, and microsatellite polymorphisms in chloroplast DNA, a neutral trait. The results revealed that there is a very large amount of genetic variation within the natural population in this area and therefore, those are an important genetic resource.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究から，トルコ南部の栽培化起源地に自生する野生コムギは現地の多様な環境に適応・進化しており，その集団内には中立的DNA変異のみならず適応的な形質としての休眠性においても大きな遺伝的多様性が眠っていることが判明した。これらの野生コムギは今後の地球環境の変化に対応した作物改良の素材としても不可欠である。近年，現地の大規模な開発や治安状況の悪化によりこれらの遺伝資源は急速に失われつつあることから，本研究で作出した集団内変異を保持したコレクションである「擬似自然集団群」は野生コムギ遺伝資源の永続的保全と利用において極めて重要な役割を果たすと期待される。
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