| Project/Area Number |
20770064
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Niigata University |
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Principal Investigator |
UWAI Shinya Niigata University, 自然科学系, 准教授 (00437500)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 種分化 / 藻類 / 褐藻 / ワカメ / 種合化 / 遺伝的多様性 / 温度要求性 / 集団分化 / マイクロサテライト / ミトコンドリアハプロタイプ / 成熟率 / 遺伝子流動 / ワカメ属 / 造卵器 |
|---|
| Research Abstract |
Genetic differentiation among the wild populations of Undaria pinnatifida (Phaeophyceae) was analyzed using mitochondrial and nuclear SSR markers in northern Kanto. 30-50 plants were collected from each of five populations (Onahama, Ju-oh, Oharai, Choshi, Katsu-ura ; north to south), among which the Onahama population was highly differentiated with the Fst values of 0.46-0.56 in SSR. Any mitochondrial haplotypes of the Onahama population were not shared with other populations, but some alleles of SSRs were common among Onahama, Ju-Oh and Oharai. These results suggests that the genetic structure reported based on the mitochondrial marker could be observed in nuclear markers, and that the gene-flow of this oogamous species might be occurred by male gametes rather than the female gametes and zoospores.
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