| Project/Area Number |
25440243
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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 |
Ecology/Environment
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| Research Institution | The University of Shiga Prefecture |
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Principal Investigator |
Urabe Misako 滋賀県立大学, 環境科学部, 教授 (50263421)
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| Co-Investigator(Kenkyū-buntansha) |
AGATSUMA Takeshi 高知大学, 医学部・看護学科, 特任教授 (40117031)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 種分化 / 二次交雑 / 遺伝子浸透 / 固有種 / 共進化 / 核遺伝子 / シングルジーンマーカー / アルギニンキナーゼ / 分子系統 / 寄生 / 宿主特異性 / 協調進化 / 共存機構 |
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| Outline of Final Research Achievements |
Genetic introgression between Semisulcospira snails in Lake Biwa was investigated using a new nuclear genetic marker (PkInt-2). Three species endemic to Lake Biwa and one non-endemic (S. libertina) formed different clades, but the other non-endemic (S. reiniana) showed a great intraspecific variation in its sequences. The Pk-Int2 showed greater heterozygosity than another common genetic marker (ITS-1) both in S. habei and S. decipiens. These results suggest that genetic introgression between Semisulcospira species is greater than expected, and more samples and loci are needed to identify genetic markers characteristic of each species.
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