ヒラアオノリに見る藻類におけるアロ認証機構と雌雄非対称性の進化
Publicly Offered Research
Project Area | Elucidation of Common Mechanisms for Allogeneic Authentication in Animals and Plants |
Project/Area Number |
22112506
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Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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Allocation Type | Single-year Grants |
Review Section |
Biological Sciences
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Research Institution | The University of Tokyo |
Principal Investigator |
河野 重行 東京大学, 大学院・新領域創成科学研究科, 教授 (70161338)
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Project Period (FY) |
2010 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2011: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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Keywords | アオサ藻綱 / ヒラアオノリ / アロ認証 / 性的二形性 / 雌雄非対称性 / 免疫サブトラクション法 / ESTライブラリー / 全ゲノム解析 / アロ認証機構 / 性的二形成 / オルガネラ遺伝 |
Research Abstract |
本研究は、アオサ藻綱のヒラアオノリを用いて、配偶子に大小の雌雄差が生じる以前にすでにあるアロ(同種異個体)認証の機構を明らかにすることを目標にしている。 1.雌雄と連鎖する性的二形性の解析:長崎大学グループ(桑野ら)、筑波大グループ(宮村ら)と協同して、確立したヒラアオノリの培養系統を冷凍して管理保存し輸送する方法を検討している。 2.免疫サブトラクション法による性的二形性に関わる遺伝子の単離:雌雄の大小は接合装置の雌雄での非対称的な配置の延長線上にある性的二形成であることを明らかにしつつある。ヒラアオノリでは配偶子の異形化はわずかであるが、「免疫サブトラクション法」で配偶子の細胞表層に接合装置の性的二形性を検出している。 1)抗雌(♀)抗血清と抗雄(♂)抗血清を調整して、雌(♀)では200kDa、雄(♂)では40kDaの特異抗原を見いだすことができた。また、雄(♂)に特異的な60kDaと40kDaのバンドも検出した。 2)抗雌(♀)抗血清と抗雄(♂)抗血清を用いて蛍光抗体染色をおこない、雌雄に特異的な細胞構造の発見に務めている。接合装置だけでなく雌雄の膜が融合する領域の染色にも成功した。 3)雌雄配偶子で67~69万リード規模のESTを構築した。また、雌雄配偶子で77~95万リード数程度ではあるが全ゲノム解析を行った。さらに、共同研究で、雌雄配偶子の細胞膜分画をマスを利用してプロテオーム解析した。いずれも限られた規模なので、3つのデータをそれぞれ補完することで、雌雄特異的な遺伝子群の同定を可能にし、ESTと全ゲノム解析で見つかった雌雄特異的なコンティグ、雌(♀)10と雄(♂)2を仮想的な性決定領域(性染色体)とした。
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Report
(2 results)
Research Products
(47 results)
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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., Kawano, S.
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Journal Title
Cytologia
Volume: 77
Pages: 59-66
Related Report
Peer Reviewed
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[Journal Article] Imbalanced functional-disorders between pollen germination and seed formation by heavy-ion beam and γ-ray irradiation2012
Author(s)
Aonuma, W., Ishii, K., Fujita, N., Shimizu, Y., Kazama, Y., Abe, T., Kawano, S.
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Journal Title
RIKEN Accel.Prog.Rep.
Volume: 45(印刷中)(掲載確定)
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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., Kawano, S.
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Journal Title
Phycol.Res.
Volume: 60(印刷中)(掲載確定)
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[Journal Article] DNA Packaging Proteins Glom and Glom2 Coordinately Organize the Mitochondrial Nucleoid of Physarum polycephalum2011
Author(s)
Itoh, K., Izumi, A., Mori, T., Dohmae, N., Yui, R., Maeda-Sano, K., Shirai, Y., Kanaoka, M.M., Kuroiwa, T., Higashiyama, T., Sugita, M., Murakami-Murofushi, K., Kawano, S., Sasaki, N.
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Journal Title
Mitochondria
Volume: 11
Issue: 4
Pages: 575-586
DOI
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Peer Reviewed
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[Journal Article] Chlamydomonas reinhardtii : Duration of its cell cycle and phases at growth rates affected by light intensity2011
Author(s)
Vitova, M., Bisova, K., Umysova, D., Hlavova, M., Kawano, S., Zachleder, V., Cizkova, M.
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Journal Title
Planta
Volume: 233
Issue: 1
Pages: 75-86
DOI
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[Journal Article] Chlamydomonas reinhardtii : duration of its cell cycle and phases at growth rates aVected by temperature2011
Author(s)
Vitova, M.; Binova, K., Hlavova, M., Kawano, S., Zachleder, V., Biqkova, M.
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Journal Title
Planta
Volume: 234
Issue: 3
Pages: 599-608
DOI
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[Journal Article] Involvement of elongation factor-1α, but not an actomyosin contractile ring, in cytokinesis in the primitive red alga Cyanidioschyzon merolae2011
Author(s)
Imoto, Y., Nishida, K., Yagisawa, F., Yoshida, Y., Ohnuma, M., Yoshida, M., Fujiwara, T., Kuroiwa, H., Kawano, S., Kuroiwa, T.
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Journal Title
Cytologia
Volume: 76
Pages: 431-437
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Peer Reviewed
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[Journal Article] Aurora kinase of the red alga Cyanidioschyzon merolae is related to both mitochondrial division and mitotic spindle formation2011
Author(s)
Kato, S., Imoto, Y., Ohnuma, M., Matsunaga, T.M., Kuroiwa, H., Kawano, S., Kuroiwa, T., Matsunaga, S.
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Journal Title
Cytologia
Volume: 76
Pages: 455-462
NAID
Related Report
Peer Reviewed
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[Journal Article] Narrowing Down the Mapping of Plant Sex-Determination Regions Using New Y Chromosome-Specific Markers and Heavy-Ion-Beam Irradiation-Induced Y Deletion Mutants in Silene latifolia2011
Author(s)
Fujita, N., Torii, C., Ishii, K., Aonuma, W., Shimizu, Y., Kazama, Y., Abe, T., Kawano, S.
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Journal Title
G3
Volume: 2
Issue: 2
Pages: 271-278
DOI
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Peer Reviewed
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[Journal Article] A petal-less flower caused by a Microbotryum violaceum mutant2011
Author(s)
Fujita, N., Aonuma, W., Shimizu, Y., Yamanaka, K., Hirata, A., Hood, M.E., Kawano, S.
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Journal Title
Int.J.Plant Sci
Volume: 173
Issue: 5
Pages: 1-11
DOI
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Peer Reviewed
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[Journal Article] DNA Packaging Proteins Glom and Glom2 Coordinately Organize the Mitochondrial Nucleoid of Physarum polycephalum.2011
Author(s)
Itoh, K., Izumi, A., Mori, T., Dohmae, N., Yui, R., Maeda-Sano, K., Shirai, Y, Kanaoka, M.M., Kuroiwa, T., Higashiyama, T., Sugita, M., Murakami-Murofushi, K., Kawano, S., Sasaki, N.
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Journal Title
Mitochondria
Volume: 11((印刷中)掲載確定)
Related Report
Peer Reviewed
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[Journal Article] Two separate pathways including SlCLV1, SlSTM and SlCUC that control carpel development in a bisexual mutant of Silene latifolia.2010
Author(s)
Koizumi, A., Yamanaka, K., Nishihara, N., Kazama, Y., Abe, T., Kawano, S.
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Journal Title
Plant Cell Physiol
Volume: 51
Pages: 282-293
NAID
Related Report
Peer Reviewed
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[Journal Article] Analysis of BAC clones containing homologous sequences on the end of the Xq arm and on chromosome 7 in the dioecious plant Silene latifolia2010
Author(s)
Ishii, K., Amanai, Y., Kazama, Y., Ikeda, M., Kamada, H., Kawano, S.
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Journal Title
Genome
Volume: 53
Pages: 311-320
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[Journal Article] Chloroplasts divide by contraction of a bundle of nanofilaments consisting of polyglucan.2010
Author(s)
Yoshida, Y., Kuroiwa, H., Misumi, O., Yoshida, M., Ohnuma, M., Fujiwara, T., Yagisawa, F., Hirooka, S., Imoto, Y., Matsushita, K., Kawano, S., Kuroiwa, T.
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Journal Title
Science
Volume: 329
Pages: 949-953
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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., Kawano, S.
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Journal Title
Cytologia
Volume: 75
Pages: 203-210
NAID
Related Report
Peer Reviewed
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[Journal Article] Sex chromosome evolution revealed by physical mapping of SlAP3X/Y in the dioecious plant Silene latifolia.2010
Author(s)
Nishiyama, R., Ishii, K., Kifune, E., Kazama, Y, Nishihara, K., Matsunaga, S., Shinozaki. K., Kawano, S.
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Journal Title
Cytologia
Volume: 75
Pages: 319-325
NAID
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[Presentation] The filament and colony formation caused by deficiency of cleavage and dissociation of the mother cell wall in Trebouxiophyceae2011
Author(s)
Yamamoto, M., Handa, S., Miyamura, S., Nagumo, T., Kawano, S.
Organizer
The 6th Asian Pacific Phycological Forum
Place of Presentation
Yeosu, Korea(招待講演)
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[Book] 生物学辞典2010
Author(s)
河野重行(分担執筆)
Total Pages
1615
Publisher
東京化学同人
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