2010 Fiscal Year Final Research Report
Elucidation of the factors which influence genetic differentiation and gene flow in populations of harmful algal bloom causing species
| Project/Area Number |
19380116
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
General fisheries
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| Research Institution | Fisheries Research Agency |
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Principal Investigator |
NAGAI Satoshi Fisheries Research Agency, 瀬戸内海区水産研究所, 主任研究員 (80371962)
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| Co-Investigator(Kenkyū-buntansha) |
MINEO Yamaguchi 水産総合研究センター, 瀬戸内海区水産研究所・環境保全研究グループ, 主任研究員 (00371956)
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| Project Period (FY) |
2007 – 2010
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| Keywords | プランクトン / 個体群構造 |
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| Research Abstract |
In this study, we examined the factors influencing to population genetic structures of three harmful algal bloom causing microalgal species in Japanese coastal waters. The population genetics analysis by use of highly polymorphic microsatellite markers strongly suggested that population expansion and new introduction in Alexandrium tamarense and Heterocapsa circularisquama has occurred by gene flow through human-assisted dispersal, namely transfers of vegetative cells via translocation of the Japanese oyster and Japanese pearl oyster's spats. In Alexandrium catenella, we obtained negative data in the population genetic study to proof the human-associated introduction from Japan to Thau lagoon (French coasts in Mediterranean Sea).
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[Presentation] Phylogenetic Relationships, Morphological Variation and Toxicity Patterns in the Alexandrium, nostenfeldii/Alexandrium peruvianum species complex.2010
Author(s)
Kremp A, Maenpaa P, Suikkanen S, Krock B, Kankaanpaa H, Sillman P, Nagai S, Lim PT.
Organizer
14^th International Conference on Harmful Algae
Place of Presentation
Crete island, Greece.
Year and Date
20100000
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