Molecular cell biological studies on the evolution of male and female sex in algae.
Project/Area Number |
22570084
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Biodiversity/Systematics
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Research Institution | University of Tsukuba |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
KAWANO Shigeyuki 東京大学, 新領域創成科学研究, 教授 (70161338)
MOTOMURA Taizo 北海道大学, 北方生物圏フィールド科学センター, 教授 (30183974)
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Project Period (FY) |
2010 – 2012
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Project Status |
Completed (Fiscal Year 2012)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | 性 / 配偶子 / 雌雄性 / 藻類 / 受精 / 海産緑藻 / 接合装置 / 雌雄 / 細胞融合 / 緑藻 |
Research Abstract |
Spatial arrangement of gamete fusion site or mating structure was studied in ulvophycean green algae, Chaetomorpha spiralis, Monostroma angicava and chlorophycean green alga Gonium pectoral using electron microsco py. In all species, cell fusion site of the gamete was located on the same side of the eyespot in one sex type while it was located on the other side of the eyespot in the opposite mating type. These results support the proposal that sex specific arrangement of cell fusion site or mating structure may be a universal feature in chlorophyte algae. The relationship between the sex determination gene MID and sex specific arrangement of mating structure was studied using G. pectorale. In the MID+ gametes, mating structure was present on the same side as the eyespot while in the MID- gametes mating structure was present on the opposite side of the eyespot. These results are consistent with that of Chlamydmonas reinhardtii and suggest that the close relationship between presence or absence of MID and sex specific arrangement of mating structure in these algae.
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Report
(4 results)
Research Products
(34 results)
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[Journal Article] Localization and evolution of septins in algae2013
Author(s)
Yamazaki, T., Owari, S., Ota, S., Sumiya, N., Yamamoto, M., Watanabe, K., Nagumo, T., Miyamura, S. and Kawano, S
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Journal Title
Plant J
Volume: (in press)
Issue: 4
Pages: 12147-8
DOI
Related Report
Peer Reviewed
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[Journal Article] Three dimensional ultrastructural study of oil and astaxanthin accumulation during encystment in the green alga Haematococcus pluvialis2013
Author(s)
Wayama, M., Ota, O., Matsuura, M., Nango, N., Hirata, A., and Kawano, S
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Journal Title
PLoS ONE
Volume: 8(1)
Issue: 1
Pages: 53618-9
DOI
Related Report
Peer Reviewed
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[Journal Article] Ultrastructural Study ofplasmodesmata in the brown Alga Dictyota dichotoma (Dictyotales, Phaeophyceae)2012
Author(s)
Terauchi, M., Nagasato, C., Kajimura, N., Mineyuki, Y., Okuda, K., Katsaros, C., Motomura. T
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Journal Title
Planta
Volume: 236
Issue: 4
Pages: 1013-1026
DOI
Related Report
Peer Reviewed
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[Journal Article] Three dimensional ultrastructural study of oil and astaxanthin accumulation during encystment in the green alga Haematococcus.2012
Author(s)
Wayama, M., Ota, S., Matuura,H., Nango, N., Hirata, A., and Kawano, S.
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Journal Title
URL
Related Report
Peer Reviewed
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[Journal Article] Isolation of mitochondrial and plastid ftsZ genes and analysis 1 of the organelle targeting sequence in the diatom Chaetoceros neogracile (Diatoms,Bacillariophyceae)2012
Author(s)
Nishikawa, T., Moriyama, Y., Sato, M., Sano, T., Hasezawa, S., Ota, S., and Kawano, S
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Journal Title
Phycol. Res
Volume: 60
Issue: 2
Pages: 123-136
DOI
Related Report
Peer Reviewed
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[Journal Article] Chloroplast division and differentially regulated expression of FtsZ1 and FtsZ2 in Nannochloris bacillalis (Chlorophyta, Trebouxiophyceae)2012
Author(s)
Sumiya, N., Watanabe, K., Owari, S., Yamamot, M., and Kawano, S.
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Journal Title
Cytologia
Volume: 77
Pages: 59-66
URL
Related Report
Peer Reviewed
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[Journal Article] Comparative immunofluorescence and ultrastructural analysis of microtubule organization in Uronema sp., Klebsormidium flaccidum, K. subtilissimum, Stichococcus bacillaris and S. chloranthus (Chlorophyta)2010
Author(s)
Katsaros, C, Varvarigos, V., Gachon, C.M. M., Brand, J., Motomura, T., Nagasato, C., Kupper, F. C
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Journal Title
Protist
Volume: 162
Issue: 2
Pages: 315-331
DOI
Related Report
Peer Reviewed
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[Journal Article] Isolation of chloroplast FtsZ and AtpC, and analysis of protein targeting into the complex chloroplast of the haptophyte Pavlova pinguis.2010
Author(s)
Nishikawa, T., Kajitani, H., Sato, M., Mogi, Y., Moriyama, Y. and Kawano, S.Nishikawa, T., Kajitani, H., Sato, M., Mogi, Y., Moriyama, Y. and Kawano, S.
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Journal Title
Cytologia
Volume: 75
Pages: 203-210
NAID
URL
Related Report
Peer Reviewed
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[Journal Article] Membrane fusion process and assembly of cell wall during cytokinesis in the brown alga, Silvetia babingtonii (Fucales, Phaeophyceae)2010
Author(s)
Nagasato, C., Inoue, A., Mizuno, M., Kanazawa, K. Ojima, T., Okuda, K., Motomrua, T
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Journal Title
Planta
Volume: 232
Issue: 2
Pages: 287-298
DOI
Related Report
Peer Reviewed
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