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KAWAI-TOYOOKA, Hiroko
Faculty of Bioscience and Applied Chemistry Department of Frontier Bioscience
Lecturer
Researchmap URL
https://researchmap.jp/kAj5dWrR4mIeiKJM
Career
■ Career
- Apr. 2020 - Present
Department of Frontier Bioscience, Faculty of Bioscience and Applied Chemistry, Hosei University
- 01 Apr. 2000 - 31 Mar. 2004, Tokyo Metropolitan University, Graduate School of Science, Department of Biological Sciences
- Apr. 2000 - Mar. 2004, Tokyo Metropolitan University, Graduate School of Science, Department of Biological Sciences
- 01 Apr. 1998 - 31 Mar. 2000, Tokyo Metropolitan University, Graduate School of Science, Department of Biological Sciences
- Apr. 1998 - Mar. 2000, Tokyo Metropolitan University, Graduate School of Science, Department of Biological Sciences
- 01 Apr. 1994 - 31 Mar. 1998, Tokyo Metropolitan University, Faculty of Science, Department of Biology
- Apr. 1994 - Mar. 1998, Tokyo Metropolitan University, Faculty of Science, Department of Biology
Research activity information
■ Award
■ Research Themes
- 02 Aug. 2013
The 2nd International Volvox Conference, Best Poster Award (The 2nd International Volvox Conference)
Mating type-specific two-step regulation for the fusogen GCS1 in the isogamous volvocine alga Gonium pectorale., Canada, International society
Kawai-Toyooka H;Mori T;Hamaji T;Suzuki M;Olson BJSC;Nozaki H - Aug. 2013
The 2nd International Volvox Conference, Best Poster Award (The 2nd International Volvox Conference)
Mating type-specific two-step regulation for the fusogen GCS1 in the isogamous volvocine alga Gonium pectorale., Canada, International society
Kawai-Toyooka H;Mori T;Hamaji T;Suzuki M;Olson BJSC;Nozaki H.
- Chlamydomonasγ-tubulin mutations reveal a critical role of γ-TuRC in maintaining the stability of centriolar microtubules
Yuki Nakazawa; Mao Horii; Akira Noga; Yoshikazu Koike; Hiroko Kawai-Toyooka; Hideo Dohra; Katsushi Yamaguchi; Shuji Shigenobu; Ken-ichi Wakabayashi; Masafumi Hirono
19 Mar. 2025 - Evolutionary analysis of MID homologs during the transition from homothallic species to heterothallic species in Volvox sect. Volvox (Chlorophyceae)
Shion Yamagishi; Kayoko Yamamoto; Kohei Takahashi; Hiroko Kawai‐Toyooka; Shigekatsu Suzuki; Ryo Matsuzaki; Haruyo Yamaguchi; Masanobu Kawachi; Tetsuya Higashiyama; Hisayoshi Nozaki
Phycological Research, 30 Nov. 2023 - Reorganization of the ancestral sex-determining regions during the evolution of trioecy in Pleodorina starrii.
Kohei Takahashi; Shigekatsu Suzuki; Hiroko Kawai-Toyooka; Kayoko Yamamoto; Takashi Hamaji; Ryo Ootsuki; Haruyo Yamaguchi; Masanobu Kawachi; Tetsuya Higashiyama; Hisayoshi Nozaki
Communications biology, 09 Jun. 2023 - Three sex phenotypes in a haploid algal species give insights into the evolutionary transition to a self-compatible mating system.
Kohei Takahashi; Hiroko Kawai-Toyooka; Ryo Ootsuki; Takashi Hamaji; Yuki Tsuchikane; Hiroyuki Sekimoto; Tetsuya Higashiyama; Hisayoshi Nozaki
Evolution; international journal of organic evolution, Nov. 2021 - Three genomes in the algal genus Volvox reveal the fate of a haploid sex-determining region after a transition to homothallism.
Kayoko Yamamoto; Takashi Hamaji; Hiroko Kawai-Toyooka; Ryo Matsuzaki; Fumio Takahashi; Yoshiki Nishimura; Masanobu Kawachi; Hideki Noguchi; Yohei Minakuchi; James G Umen; Atsushi Toyoda; Hisayoshi Nozaki
Proceedings of the National Academy of Sciences of the United States of America, 25 May 2021 - Morphological and molecular identification of the dioecious “African species” Volvox rousseletii (Chlorophyceae) in the water column of a Japanese lake based on field-collected and cultured materials.
Kimbara R; Isaka N; Matsuzaki R; Kawai-Toyooka H; Kawachi M; Nozaki H.
PLoS One, 2019, [Reviewed] - Exploring the limits and causes of plastid genome expansion in volvocine green algae.
Gaouda H; Hamaji T; Yamamoto K; Kawai-Toyooka H; Suzuki M; Noguchi H; Minakuchi Y; Toyoda A; Fujiyama A; Nozaki H; Smith DR.
Genome Biol. Evol., 2018, [Reviewed] - Anisogamy evolved with a reduced sex-determining region in volvocine green algae
Hamaji T; Kawai-Toyooka H; Uchimura H; Suzuki M; Noguchi H; Minakuchi Y; Toyoda A; Fujiyama A; Miyagishima SY; Umen JG; Nozaki H
Commun. Biol., 2018 - Multiple independent changes in mitochondrial genome conformation in chlamydomonadalean algae.
Hamaji T; Kawai-Toyooka H; Toyoda A; Minakuchi Y; Suzuki M; Fujiyama A; Nozaki H; Smith DR.
Genome Biol. Evol., 2017 - Molecular evolutionary analysis of a gender-limited MID ortholog from the homothallic species Volvox africanus with male and monoecious spheroids.
Yamamoto K; Kawai-Toyooka H; Hamaji T; Tsuchikane Y; Mori T; Takahashi F; Sekimoto H; Ferris PJ; Nozaki H
PLoS One, 2017, [Reviewed] - Evolution of cytokinesis-related protein localization during the emergence of multicellularity in volvocine green algae.
Arakaki Y; Fujiwara T; Kawai-Toyooka H; Kawafune K; Featherston J; Durand PM; Miyagishima SY; Nozaki H.
BMC Evol. Biol., 2017, [Reviewed] - The Gonium pectorale genome demonstrates cooption of cell cycle regulation during the evolution of multicellularity.
Hanschen ER; Marriage TN; Ferris PJ; Hamaji T; Toyoda A; Fujiyama A; Neme R; Noguchi H; Minakuchi Y; Suzuki M; Kawai-Toyooka H; Smith DR; Sparks H; Anderson J; Bakarić R; Luria V; Karger A; Kirschner M; Durand PM; Michod RE; Nozaki H; Olson BJSC.
Nat. Commun., 2016, [Reviewed] - Alternative evolution of a spheroidal colony in volvocine algae: developmental analysis of embryogenesis in Astrephomene (Volvocales, Chlorophyta).
Yamashita S; Arakaki Y; Kawai-Toyooka H; Noga A; Hirono M; Nozaki H.
BMC Evol. Biol., 2016, [Reviewed] - Revisiting the taxonomic significance of aplanozygote morphologies of two cosmopolitan snow species of the genus Chloromonas (Volvocales, Chlorophyceae).
Matsuzaki R; Kawai-Toyooka H; Hara Y; Nozaki H.
Phycologia, 2015, [Reviewed] - Gamete dialogs in green lineages.
Mori T; Kawai-Toyooka H; Igawa T; Nozaki H.
Mol. Plant, 2015, [Reviewed], [Invited] - Sex-specific post-translational regulation of the gamete fusogen GCS1 in the isogamous volvocine alga Gonium pectorale.
Kawai-Toyooka H; Mori T; Hamaji T; Suzuki M; Olson BJSC; Uemura T; Ueda T; Nakano A; Toyoda A; Fujiyama A; Nozaki H
Eukaryot. Cell, 2014, [Reviewed] - Mitochondrial and plastid genomes of the colonial green alga Gonium pectorale give insights into the origins of organelle DNA architecture within the Volvocales.
Hamaji T; Smith DR; Noguchi H; Toyoda A; Suzuki M; Kawai-Toyooka H; Fujiyama A; Nishii I; Marriage T; Olson BJSC; Nozaki H.
PLoS One, 2013, [Reviewed] - The evolution of male-female sexual dimorphism predates the gender-based divergence of the mating locus gene MAT3/RB.
Hiraide R; Kawai-Toyooka H; Hamaji T; Matsuzaki R; Kawafune K; Abe J; Sekimoto H; Umen J; Nozaki H.
Mol. Biol. Evol., 2013, [Reviewed] - The simplest integrated multicellular organism unveiled.
Arakaki Y; Kawai-Toyooka H; Hamamura Y; Higashiyama T; Noga A; Hirono M; Olson BJSC; Nozaki H
PLoS One, 2013, [Reviewed] - Description of two new monoecious species of Volvox sect. Volvox (Volvocaceae, Chlorophyceae), based on comparative morphology and molecular phylogeny of cultured material.
Isaka N; Kawai-Toyooka H; Matsuzaki R; Nakada T; Nozaki H.
J. Phycol., 2012, [Reviewed] - Phototropins and Neochrome1 Mediate Nuclear Movement in the Fern Adiantum capillus-veneris
Tsuboi H; Suetsugu N; Kawai-Toyooka H; Wada M.
Plant Cell Physiol., 2007, [Reviewed] - DNA Interference: a simple and efficient gene-silencing system for high-throughput functional analysis in the fern Adiantum.
Kawai-Toyooka H; Kuramoto C; Orui K; Motoyama K; Kikuchi K; Kanegae T; Wada M.
Plant Cell Physiol., 2004, [Reviewed]
Lead - Responses of ferns to red light are mediated by an unconventional photoreceptor.
Kawai H; Kanegae T; Christensen S; Kiyosue T; Sato Y; Imaizumi T; Kadota A; Wada M.
Nature, 2003, [Reviewed]
- 実験メソッド&マニュアル RNAi実験UPDATE(第4回)DNAiによる遺伝子機能の解析 ーその現状と将来性ー
和田 正三; 河合 豊岡
バイオテクノロジージャーナル, Sep. 2005, [Invited]
■ Research Themes
- Structural and molecular basis for the behavioral changes during the colonial-individual conversion of sperms in volvocine green algae
Grant-in-Aid for Transformative Research Areas (A)
Hosei University
16 Jun. 2022 - 31 Mar. 2024 - Exploring the molecular basis for the emergence of inter-sexual communication associated with the evolution of male-female dimorphism
Grant-in-Aid for Scientific Research (C)
Apr. 2017 - Mar. 2022 - Elucidating the molecular basis of evolution of gamete fusion mechanism associated with the establishment of male-female gamete dimorphism
Grant-in-Aid for Research Activity Start-up
The University of Tokyo
Aug. 2013 - Mar. 2016 - Analysis of the mechanism of cell stalk formation in morphogenesis of Volvox embryo
Grant-in-Aid for Young Scientists (Start-up)
The Institute of Physical and Chemical Research
2007 - 2008
