2009 Fiscal Year Final Research Report
Analysis of reproductive isolation by sex pheromones in unicellular conjugatophycean Closterium
| Project/Area Number |
19770068
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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 | Japan Women's University |
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Principal Investigator |
TSUCHIKANE Yuki Japan Women's University, 理学部, 学術研究員 (20434152)
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| Project Period (FY) |
2007 – 2009
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| Keywords | ミカヅキモ / 性フェロモン / 有性生殖 / 生殖隔離 / 種分化 / ヘテロタリック |
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| Research Abstract |
The Closterium peracerosum-strigosum-littorale (C. psl.) complex is a unicellular charophycean alga and their sex pheromones, responsible for the progress of the sexual reproduction, are well characterized. The C. psl. complex is known to be composed of several reproductively isolated mating groups of heterothallic strains. In this study, we assessed the phylogenetic relationships among reproductively isolated mating groups of the C. psl. complex and sex pheromones. Cross-reactivities of sex pheromones among the groups are also analyzed. The existing degree of reproductive isolation can be explained by differences in molecular structures and physiological activities of sex pheromones of these heterothallic mating groups.
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[Presentation] Characterization of two receptor-like proteins relating to the sexual reproduction of a unicellular charophycean alga, Closterium peracerosum-strigosum-littorale complex2008
Author(s)
Sekimoto, H., Akatsuka, S., Ichikawa, M., Marukawa, Y., Takekawa, Y., Abe, J., Tsuchikane, Y
Organizer
The Vth Asian Pacific Phycological Forum
Place of Presentation
Wellington, New Zealand
Year and Date
20081100
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