Shuji Yokoi

J-GLOBAL         Last updated: Aug 20, 2019 at 10:32
 
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Name
Shuji Yokoi
Affiliation
Osaka Prefecture University
Section
Faculty of Agriculture

Research Areas

 
 

Published Papers

 
He H, Iizuka T, Maekawa M, Sadahisa K, Morikawa T, Yanase M, Yokoi S, Oda M, Tezuka T
Journal of plant research   132(4) 461-471   Jul 2019   [Refereed]
Hashimoto S, Tezuka T, Yokoi S
Planta      Jul 2019   [Refereed]
Takemasa Koumoto, Naohiro Aoki, Takahiro Hamasaki, Shigehide Shiga, Shuji Yokoi, Shuji Yokoi, Hiroyuki Shimono
Environmental and Experimental Botany   155 307-312   Nov 2018
© 2018 Elsevier B.V. Flowering date reflects the adjustment of a plant's growth period to a given environment. This is true of rice, which is a major food source around the world. We tested whether rice plants can recognize and record natural vari...
Kitamoto N, Nishikawa K, Tanimura Y, Urushibara S, Matsuura T, Yokoi S, Takahata Y, Yui S.
Euphytica   214(2)    2018   [Refereed]
Naoko Kitamoto, Kazuhiro Nishikawa, Yoshinori Tanimura, Shoji Urushibara, Takuya Matsuura, Shuji Yokoi, Yoshihito Takahata, Susumu Yui
Euphytica   213(12)    Dec 2017   [Refereed]
© 2017, Springer Science+Business Media B.V., part of Springer Nature. We developed new F 1 hybrids of Chinese cabbage (Brassica rapa L. ssp. pekinensis) that allow cultivation earlier in spring without heating by introducing extremely late-boltin...
Yoshitsu Y, Takakusagi M, Abe A, Takagi H, Uemura A, Yaegashi H, Terauchi R, Takahata Y, Hatakeyama K, Yokoi S
Breeding science   67(5) 518-527   Dec 2017   [Refereed]
Suguru Ozawa, Katsunori Hatakeyama, Yoshihito Takahata, Shuji Yokoi
Plant Breeding   136(3) 386-392   Jan 2017   [Refereed]
© 2017 Blackwell Verlag GmbH.Plants develop juvenile phase to adult phase in vegetative stage. Although soybean is a very important crop worldwide, there has been only one study of the juvenile-adult phase change. In this study, we determined that...
Haitham E M Zaki, Haitham E M Zaki, Shuji Yokoi
Plant Biotechnology   33(5) 361-372   Jan 2016   [Refereed]
© 2016 The Japanese Society for Plant Cell and Molecular Biology.Salinity stress is a major abiotic stress for plants worldwide. This study was carried out to determine the variation in salt tolerance for 12 different genotypes belonging to three ...
Koumoto T, Saito N, Aoki N, Iwasaki T, Kawai S, Yokoi S, Shimono H.
Plant Production Science   19(4) 497-507   2016   [Refereed]
Zaki H.E.M, Takahata Y, Yokoi S.
Journal of Horticultural Science and Biotechnology   87(2) 172-178   2012   [Refereed]
Ko Shimamoto, Shuji Yokoi
Light Sensing in Plants   339-346   Jan 2005
© Yamada Science Foundation and Springer-Verlag Tokyo 2005. All rights are reserved.Regulation of flowering is one of the most important processes of plants since it is closely related to the success of reproduction. Flowering time is controlled b...
Yokoi S, Quintero F.J, Cubero B, Ruiz M.T, Bressan R.A, Hasegawa P.M, Pardo J.M.
Plant Journal   30(5) 529-539   2002   [Refereed]
Kishitani Sachie, Yokoi Shuji
Breeding Research   1(2) 83-90   1999
Yokoi S, Tsuchiya T, Toriyama K, Hinata K.
Plant Cell Reports   16(6) 363-367   1997   [Refereed]
YOKOI Shuji, TSUCHIYA Tohru, TORIYAMA Kinya, HINATA Kokichi
Plant and cell physiology   37    Mar 1996

Conference Activities & Talks

 
船越孝之, 小川拓水, 手塚孝弘, 太田大策, 横井修司
育種学研究   16 Mar 2019   
橋本舜平, 手塚孝弘, 横井修司
育種学研究   16 Mar 2019   
HE H., 横井修司, 手塚孝弘
育種学研究   22 Sep 2018   
白柿薫平, 横井修司, 手塚孝弘
育種学研究   22 Sep 2018   
濱本亮, 手塚孝弘, 横井修司
育種学研究   25 Mar 2018   
橋本舜平, 手塚孝弘, 横井修司
育種学研究   25 Mar 2018   
小幡正彬, 白柿薫平, 一谷勝之, 久保山勉, 松村篤, 森川利信, 横井修司, 手塚孝弘
育種学研究   7 Oct 2017   
吉津祐貴, 一谷勝之, 畠山勝徳, 高畑義人, 横井修司
育種学研究   7 Oct 2017   
川口謙二, 大矢祐一郎, 森川利信, 横井修司, 手塚孝弘
育種学研究   7 Oct 2017   
岡田益己, 吉津祐貴, 武氣壮平, 横井修司
日本農業気象学会全国大会講演要旨/Proceedings of International Symposium on Agricultural Meteorology   2017   
河本健正, 青木直大, 濱嵜孝弘, 横井修司, 下野裕之
日本作物学会講演会要旨集   27 Mar 2015   
河本健正, 阿部陽, 福嶌陽, 島影玲子, 佐藤律子, 横井修司, 下野裕之
日本作物学会講演会要旨・資料集   29 Mar 2014   
高橋靖幸, 手島康介, 横井修司, 印南秀樹, 島本功
日本植物生理学会年会要旨集   12 Mar 2010   
Rice has evolved during the last 8000 years of domestication and breeding. One major reason for the spread of rice cultivation to a wide range of geographical regions is the diversification of flowering time. The molecular genetic studies have ide...
小宮怜奈, 横井修司, LEE Shinyoung, AN Gynheung, 島本功
日本植物生理学会年会要旨集   16 Mar 2009   
RICE FLOWERING LOCUS T 1 (RFT1) is the closest homolog to Heading date 3a (Hd3a), which promotes floral transition in short-day (SD) in rice. We demonstrate that RFT1 is a floral activator under long-day (LD) con...
高橋靖幸, 横井修司, 手島康介, 印南秀樹, 島本功
日本植物生理学会年会要旨集   16 Mar 2009   
Rice is a facultative short day plant, and molecular genetic studies have identified the major genes involved in short day flowering. We focused on study of the natural variation of photoperiodic flowering pathway in cultivated rice. The aim of th...
高橋靖幸, 横井修司, 島本功
日本植物生理学会年会要旨集   15 Mar 2008   
Recently, genes required for photoperiodic flowering of rice were discovered. It is well known that rice cultivars which are widely grown in the world show a large diversity among them. Flowering time is one such example. Thus, we focused on study...
玉置祥二郎, NAVARRO Cristina, 横井修司, 辻寛之, PRAT Salome, 島本功
日本植物生理学会年会要旨集   15 Mar 2008   
Photoperiods control several morphogenic responses such like flowering and tuber formation throughout plant life cycle. Flowering and tuberization are distinct reproduction strategies, both of which involve sensing of the photoperiod, generation o...
Komiya Reina, Yokoi Shuji, Lee Shinyoung, An Gynheung, Shimamoto Ko
Plant and Cell Physiology Supplement   2008   
Rice Flowering Locus T 1 (RFT1) is the closest homologue of Heading date 3a (Hd3a), which promotes floral transition in short-day (SD) in rice. In SD, Hd3a RNAi plants delay flowering, but RFT1 RNAi plants...
ASAO H., TAMAKI S., YOKOI S., MAEDA S., NAKA T., SHIMAMOTO K.
園芸学研究. 別冊, 園芸学会大会研究発表要旨   24 Mar 2007   
高橋靖幸, 横井修司, 島本功
日本植物生理学会年会要旨集   15 Mar 2007   
Recently, the molecular mechanism of photoperiodic flowering pathway of rice is just now uncovering. Under short day condition, induction of flowering requires the gene expression of OsGI, Hd1 , Ehd1 and Hd3a.<br>But th...
石川亮, 青木麻由美, 黒谷賢一, 清水久代, 横井修司, 稲垣言要, 篠村知子, 高野誠, 島本功
日本植物生理学会年会要旨集   15 Mar 2007   
We performed the night-break (NB) experiments and carried out molecular analysis of flowering time genes in rice. NB caused delay of flowering by the down-regulation of Hd3a without affecting OsGI or Hd1 expression pattern, an...
komiya Reina, Ikegami Akiko, Yokoi Shuji, Shimamoto Ko
Plant and Cell Physiology Supplement   2007   
Rice Flowering Locus T 1 (RFT1) is the closest homologue of Heading date 3a (Hd3a) gene, which promotes floral transition in short-day (SD) of rice. Double RFT1-Hd3a RNAi plants did not flower even at 300 days af...
Tamaki Shojiro, Matuo Shoichi, Wong Hann Ling, Yokoi Shuji, Shimamoto Ko
Plant and Cell Physiology Supplement   2007   
Rice (SDP) has the three key regulators of flowering time, OsGI, Hd1 and Hd3a have been shown to play important roles in the photoperiodic control of flowering in rice. Overexpression of Hd3a in rice was shown early flo...
高橋靖幸, 石川亮, 横井修司, 島本功
日本植物生理学会年会要旨集   Mar 2006   
Day-length is one of the major environmental factors used by plants to determine optimal time to flower. We study the variation of photoperiodic flowering pathway among the various rice cultivars. To investigate natural variation in rice (Oryza...
阿部誠, 黒谷賢一, 池田美香, 横井修司, 島本功
日本植物生理学会年会要旨集   Mar 2006   
OsGI is one of the genes involved in the photoperiodic control of flowering in rice, however its biochemical function is unknown. To understand that, we attempt to identify members in the OsGI protein complex under native conditions by usin...
Komiya Reina, Ikegami Akiko, Yokoi Shuji, Shimamoto Ko
Supplement   2006   
Rice is a short-day (SD) plant and promotes flowering by the expression of Hd3a in SD. FT-L1 and FT-L3 are highly homologous to Hd3a. <br> To examine the expression patterns of Hd3a -like genes, we investigat...
石川亮, 高橋靖幸, 石塚徹, 横井修司, 稲垣言要, 篠村知子, 高野誠
日本植物生理学会年会要旨集   Mar 2005   
Plants are classified into short-day plants (SDP) and long-day plants (LDP) based on their flowering response to day-length. Recently, signaling cascades of flowering have been intensively studied. Analysis of flowering-time genes in Arabidopsi...
島本功, 玉置祥二郎, 小宮怜奈, 松尾祥一, 石川亮, 池田美香, 阿部誠, 黒谷賢一, 横井修司
日本植物生理学会年会要旨集   Mar 2005   
The study of genes involved in regulation of flowering time in rice started only recently. Comparative study of flowering time genes in rice, a SDP, and Arabidopsis, a LDP, indicates that they are highly conserved between the two species. T...
Komiya Reina, Ikegami Akiko, Yokoi Shuji, Shimamoto Ko
Plant and Cell Physiology Supplement   2005   
Rice is a short-day (SD) plant and promotes flowering by the expression of Hd3a (FT-L2) under SD condition. Ten Hd3a-like genes (FT-L1~11) are present in rice genome. However, their functions in flowering are not known ...
Tamaki Shojiro, Matsuo Shoichi, Abe Makoto, Yokoi Shuji, Yano Masahiro, Shimamoto Ko
Plant and Cell Physiology Supplement   2005   
Rice (short -day plant) has the three key regulators of flowering time, OsGI, Hd1 and Hd3a have been shown to play important roles in the photoperiodic control of flowering in rice. Overexpression of Hd3a in rice was sh...
石川亮, 横井修司, 島本功
日本植物生理学会年会要旨集   20 Mar 2004   
To investigate regulation of the photoperiodic control of flowering in rice, we employed the night break (NB) experiment. Although effects of NB have been studied in a few short day plants, little is known about the molecular basis of NB. <br>We i...
Yokoi Shuji, Lee Shinyoung, An Gynheung, Shimamoto Ko
Plant and Cell Physiology Supplement   2004   
The photoperiodic control of flowering is one of the important responses of plants because it is directly related to success of reproduction of its progeny.<br>We have isolated a mutant that exhibited late flowering phenotype under natural light c...
Tamaki Shojiro, Abe Makoto, Yokoi Shuji, Yano Masahiro, Shimamoto Ko
Plant and Cell Physiology Supplement   2004   
The rice (SD plant) orthologs of the three key regulators of flowering time in Arabidopsis (LD plant), GI, CO and FT have been shown to play important roles in the photoperiodic control of flowering in rice. We have pre...
Shimamoto Ko, Ishikawa Ryo, Abe Makoto, Tamaki Shojiro, Hayama Ryosuke, Izawa Takeshi, Yokoi Shuji
Plant and Cell Physiology Supplement   2003   
The molecular genetic analysis of Arabidopsis thaliana, a long-day (LD) plant, has identified a number of genes required for the photoperiodic control of flowering. However, very little is known about the molecular mechanisms of short-day p...
MORITA R., YOKOI S., TAKASE N., HIRATSUKA K., TORIYAMA K.
育種学研究 = Breeding research   26 Aug 2002   

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2009 - 2011    Investigator(s): Masumi OKADA
The time of flower evolution of rice was analyzed by observing panicle initiation in the experiments where water temperature and day length were controlled. We obtained the following new important findings ; 1) photoperiod sensitivity was initiate...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2009 - 2010    Investigator(s): Shuji YOKOI
We indicated that GI mediates the sodium stress response via induction in gene expression of stress-related genes as a result of circadian clock regulation. We also found that GI suppresses the newly identified stress-induced-flowering pathway.
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2007 - 2009    Investigator(s): Takeshi NISHIO
Cooperative research of three laboratories was performed to elucidate the speciation process of amphidiploid species in genus Brassica by investigating genes responsible for interspecific incompatibility and breakdown of hybrid embryos and mechani...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2007 - 2009    Investigator(s): Shuji YOKOI