2015 Fiscal Year Final Research Report
Genetic differentiation and gene flow between populations of Cladophora species distributed in marine, brackish water or freshwater
| Project/Area Number |
24570106
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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 | Fukui Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 汽水 / 塩濃度勾配 / 種分化 / 生理生態 / 雑種強勢 / 無性生殖 |
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| Outline of Final Research Achievements |
Marine Cladophora albida included a larger number of widely-distributed ribotypes than marine C. opaca. Cladophora albida grows throughout the year, whereas C. opaca disappears during summer, which may affect on the frequency of interpopulational gene flow. Cladophora glomerata consisted of two phylogenetic groups; group 1 appeared in only freshwater habitats and the rate of heterozygous specimens was 7%, whereas group 2 was distributed in both freshwater and brackish habitats and all specimens were heterozygous. These results suggest that the two groups are not only reproductively isolated but also ecophysiologically differentiated.
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| Free Research Field |
藻類学
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