• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Deciphering molecular mechanisms of floret development in Triticeae crops

Research Project

Project/Area Number 16K18635
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Science in genetics and breeding
Research InstitutionTottori University

Principal Investigator

SAKUMA Shun  鳥取大学, 農学部, 助教 (40717352)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords収量 / 穂形態 / 遺伝子 / 進化 / オオムギ / コムギ / 小花 / 穀粒数 / 穀粒サイズ / 変異体 / 育種学 / 遺伝学 / 植物
Outline of Final Research Achievements

Inflorescence architecture influences final grain yield in Triticeae crops such as wheat and barley. However, little is known regarding the genetic basis of inflorescence development. This study aimed to identify the genes regulating floret development in wheat and barley. In wheat, the locus Grain Number Increase 1 (GNI1) has been identified as an important contributor to floret fertility. Mutants carrying an impaired GNI1 allele out-yielded WT allele plants under field conditions. In barley, it was revealed that extreme suppression of lateral florets by Vrs1.t allele contributes to enlarged grains. These results suggest that grain yield can be improved by DNA marker assisted selection using the identified genes.

Academic Significance and Societal Importance of the Research Achievements

本研究により、オオムギとコムギの収量性を向上させる穂形態を制御する遺伝子が明らかになった。地球規模の気候変動に伴う減収が懸念される中、収量性の向上は世界共通の課題である。単離した遺伝子はいずれも自然に存在する変異で長い年月をかけて選抜されたものである。今後この遺伝子を利用することで効率的な収量性の改善が期待できる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (22 results)

All 2019 2018 2017 Other

All Int'l Joint Research (7 results) Journal Article (6 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 5 results,  Open Access: 6 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Int'l Joint Research] IPK(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] The Hebrew University of Jerusalem(イスラエル)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] CSIC(スペイン)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] The University of Sydney(オーストラリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] IPK(ドイツ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] The University of Sydney(オーストラリア)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] CSIC(スペイン)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Unleashing floret fertility in wheat through the mutation of a homeobox gene2019

    • Author(s)
      Sakuma, S., Golan, G., Guo, Z., Ogawa, T., Tagiri, A., Sugimoto, K., Bernhardt, N., Brassac, J., Mascher, M., Hensel, G., Ohnishi, S., Jinno, H., Yamashita, Y., Ayalon, I., Peleg, Z., Schnurbusch, T., Komatsuda, T.
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 116 Issue: 11 Pages: 5182-5187

    • DOI

      10.1073/pnas.1815465116

    • NAID

      120006958020

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Elucidation of the origin of ‘agriocrithon’ based on domestication genes questions the hypothesis that Tibet is one of the centers of barley domestication2018

    • Author(s)
      Pourkheirandish Mohammad、Kanamori Hiroyuki、Wu Jianzhong、Sakuma Shun、Blattner Frank R.、Komatsuda Takao
    • Journal Title

      The Plant Journal

      Volume: 94 Issue: 3 Pages: 525-534

    • DOI

      10.1111/tpj.13876

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Resequencing theVrs1 gene in Spanish barley landraces revealed reversion of six-rowed to two-rowed spike2018

    • Author(s)
      Casas Ana M.、Contreras-Moreira Bruno、Cantalapiedra Carlos P.、Sakuma Shun、Gracia Mar?a Pilar、Moralejo Marian、Molina-Cano Jos? Luis、Komatsuda Takao、Igartua Ernesto
    • Journal Title

      Molecular Breeding

      Volume: 38 Issue: 5 Pages: 51-51

    • DOI

      10.1007/s11032-018-0816-z

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Unleashing floret fertility by a mutated homeobox gene improved grain yield during wheat evolution under domestication2018

    • Author(s)
      Sakuma, S., Golan, G., Guo, Z., Ogawa, T., Tagiri, A., Sugimoto, K., Bernhardt, N., Brassac, J., Mascher, M., Hensel, G., Ohnishi, S., Jinno, H., Yamashita, Y., Ayalon, I., Peleg, Z., Schnurbusch, T., Komatsuda, T.
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/434985

    • Related Report
      2018 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] On the Origin of the Non-brittle Rachis Trait of Domesticated Einkorn Wheat2018

    • Author(s)
      Pourkheirandish Mohammad、Dai Fei、Sakuma Shun、Kanamori Hiroyuki、Distelfeld Assaf、Willcox George、Kawahara Taihachi、Matsumoto Takashi、Kilian Benjamin、Komatsuda Takao
    • Journal Title

      Frontiers in Plant Science

      Volume: 8 Pages: 2031-2031

    • DOI

      10.3389/fpls.2017.02031

    • NAID

      120006626770

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Extreme Suppression of Lateral Floret Development by a Single Amino Acid Change in the VRS1 Transcription Factor2017

    • Author(s)
      Sakuma Shun、Lundqvist Udda、Kakei Yusuke、Thirulogachandar Venkatasubbu、Suzuki Takako、Hori Kiyosumi、Wu Jianzhong、Tagiri Akemi、Rutten Twan、Koppolu Ravi、Shimada Yukihisa、Houston Kelly、Thomas William T.B.、Waugh Robbie、Schnurbusch Thorsten、Komatsuda Takao
    • Journal Title

      Plant Physiology

      Volume: 175 Issue: 4 Pages: 1720-1731

    • DOI

      10.1104/pp.17.01149

    • NAID

      120006958021

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] コムギの稔実小花数増加による多収化2019

    • Author(s)
      佐久間 俊, Guy Golan, Zifeng Guo, 小川 泰一, 田切 明美, 杉本 和彦, 大西 志全, 神野 裕信, 山下 陽子, Zvi Peleg, Thorsten Schnurbusch, 小松田 隆夫
    • Organizer
      第135回日本育種学会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] オオムギ側列小花の極端な発達抑制による大粒化2018

    • Author(s)
      佐久間俊, 小松田隆夫
    • Organizer
      第134回日本育種学会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 麦類の小花稔性に関する遺伝機構2018

    • Author(s)
      佐久間俊
    • Organizer
      第10回中国地域育種談話会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Understanding genetic diversity of inflorescence architecture in Triticeae2018

    • Author(s)
      Shun Sakuma
    • Organizer
      International Training Course on Triticeae Genomics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mutation identification by direct comparison of whole-genome sequencing data of mutant and wild type individuals2018

    • Author(s)
      Martin Mascher, Shun Sakuma
    • Organizer
      Second International Barley Mutant Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cloning of the zero-rowed spike 1 in barley2018

    • Author(s)
      S. Sakuma, M. Mascher, T. Komatsuda, T. Schnurbusch
    • Organizer
      International Plant & Animal Genome XXVI
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Genetic basis of grain number in Triticeae2017

    • Author(s)
      S. Sakuma, T. Schnurbusch, T. Komatsuda
    • Organizer
      International Workshop-Barley and wheat orthologous genes, their structure, function and application.
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] コムギにおける擬似分枝を制御する遺伝子の同定2017

    • Author(s)
      三橋優衣・佐久間俊・川浦香奈子
    • Organizer
      第132回日本育種学会講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] コムギの小穂発達に関する遺伝解析2017

    • Author(s)
      三橋優衣・佐久間俊・川浦香奈子
    • Organizer
      第12回ムギ類研究会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi