Investigation on the origin and evolution of the diploid multicellular body plan of land plants by focusing on genes from charophycean green algae

2011 Fiscal Year Final Research Report

• Project/Area Number: 22770083
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Biodiversity/Systematics
• Research Institution: Kobe University
• Principal Investigator: SAKAYAMA Hidetoshi 神戸大学, 大学院・理学研究科, 講師 (60391108)
• Project Period (FY): 2010 – 2011
• Keywords: 進化 / 植物の体制進化

Research Abstract

In order to investigate the origin and evolution of the diploid multicellular sporophytes of land plants, in this study, we performed RNA-seq analysis from different tissues of Chara braunii, which has haploid multicellular gametophyte generation with complex differentiation of cell types and organs. Within contigs obtained in this study, we found many homologues of genes involved in plant development. The phylogenetic, expression and functional analyses in homologues obtained in this study may shed light on the key to understanding the origin and evolution of multicellular sporophytes.

Research Products

• [Journal Article] An extended phylogenetic analysis reveals ancient origin of "non-green" phosphoribulokinase genes from two lineages of "green" secondary photosyntheic eukaryotes : Euglenophyta and Chlorarachniophyta (2011)
  • Author(s): Yang, Y., Maruyama, S., Sekimoto, H., Sakayama, H. & Nozaki, H
  • Journal Title: BMC Research Notes Volume: 4 Pages: 330
  • DOI: DOI:10.1186/1756-0500-4-330
• [Journal Article] Aquatic plant speciation affected by diversifying selection of organelle DNA regions (2011)
  • Author(s): Kato, S., Misawa, K., Takahashi, F., Sakayama, H., Sano, S., Kosuge, K., Kasai, F., Watanabe, M. M., Tanaka, J. & Nozaki, H
  • Journal Title: Journal of Phycology Volume: 47 Pages: 999-1008
  • DOI: DOI:10.1111/j.1529-8817.2011.01037.x
• [Journal Article] Morphology and Molecular Phylogeny of Chara altaica(Charales, Charophyceae) (2010)
  • Author(s): Kato, S., Sakayama, H., Morishima, H., Sano, S., Oomori, Y., Kato, N, Ito, M., Kasai, F, Watanabe, M. M. & Nozaki, H
  • Journal Title: A monoecious species of the section Desvauxia Volume: 75 Pages: 211-220
  • URL: https://www.jstage.jst.go.jp/browse/cytologia/75/2/_contents
• [Journal Article] 植物の上陸作戦=シャジクモの辿った道 (2010)
  • Author(s): 坂山英俊
  • Journal Title: BSJ-Review Volume: 1 Pages: 30-35
  • URL: http://bsj.or.jp/frontier/BSJreview2010A7.pdf
• [Presentation] 長野県および千葉県に生育するシャジクモ属(シャジクモ目、シャジクモ科)の未記載種について (2012)
  • Author(s): 坂山英俊・加藤将・樋口澄男・佐野郷美・野崎久義・川井浩史
  • Organizer: 第11回日本植物分類学会
  • Place of Presentation: 大阪学院大学(大阪府)
  • Year and Date: 2012-03-24
• [Presentation] オオシャジクモ種内(シャジクモ目シャジクモ科)の新規系統に関する分類学的研究 (2012)
  • Author(s): 加藤将・川井浩史・柴田葵・坂山英俊
  • Organizer: 第11回日本植物分類学会
  • Place of Presentation: 大阪学院大学(大阪府)
  • Year and Date: 2012-03-23
• [Presentation] 次世代シーケンサーデータのde novoアセンブリー解析 (2012)
  • Author(s): 西山智明・阿部淳・土金勇樹・坂山英俊・関本弘之
  • Organizer: 第53回日本植物生理学会年会
  • Place of Presentation: 京都産業大学(京都府)
  • Year and Date: 2012-03-17
• [Presentation] Closterium and Chara genome and transcriptome analyses (2012)
  • Author(s): Abe, J., Sakayama, H., Suzuki, Y., Toyoda, A., Tsuchikane, Y., Sekimoto, H. and Nishiyama, T
  • Organizer: The International Plant & Animal Genome XX Conference
  • Place of Presentation: San Diego, USA
  • Year and Date: 2012-01-14
• [Presentation] シャジクモ藻類のゲノム解析の現状とシャジクモRNA-seq解析から探る陸上植物の進化 (2011)
  • Author(s): 坂山英俊・西山智明
  • Organizer: 日本植物学会第75回大会
  • Place of Presentation: 東京大学駒場キャンパス(東京都)
  • Year and Date: 2011-09-18
• [Presentation] 絶滅危惧種の多様性情報学と域外保全技術開発に向けて～シャジクモ類を例に～ (2011)
  • Author(s): 加藤将・柴田葵・坂山英俊
  • Organizer: 第33回水草研究会全国集会
  • Place of Presentation: 群馬県立自然史博物館(群馬県)
  • Year and Date: 2011-08-20
• [Presentation] シャジクモ(Chara braunii)に見られる生態的2型の進化生物学的解析 (2011)
  • Author(s): 加藤将・坂山英俊
  • Organizer: 第33回水草研究会全国集会
  • Place of Presentation: 群馬県立自然史博物館(群馬県)
  • Year and Date: 2011-08-20
• [Presentation] 広範囲な分子系統解析は緑色系二次共生藻の光合成PRK遺伝子が緑色ではない藻類からの起源を示す (2011)
  • Author(s): 楊億・丸山真一朗・関本弘之・坂山英俊・野崎久義
  • Organizer: 日本藻類学会第35回大会
  • Place of Presentation: 富山大学(富山)
  • Year and Date: 2011-03-27
• [Presentation] 車軸藻類フラスコモ属の系統分類学的解析 (2011)
  • Author(s): 柴田葵・川井浩史・坂山英俊.車軸藻類
  • Organizer: 日本藻類学会第35回大会
  • Place of Presentation: 富山大学(富山)
  • Year and Date: 2011-03-27
• [Book] 鳥取県生活環境部公園自然課 (2012)
  • Author(s): 坂山英俊・齊藤聖・柴田葵.車軸藻類
  • Total Pages: 176-180
  • Publisher: レッドデータブックとっとり改訂版