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Molecular genetics of temporal regulation of leaf initiation in rice

Research Project

Project/Area Number 24380005
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Breeding science
Research InstitutionThe University of Tokyo

Principal Investigator

JUN-ICHI Itoh  東京大学, 農学生命科学研究科, 准教授 (30345186)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2014: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2013: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2012: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywordsイネ / 発生 / 葉原基 / 葉間期 / 植物 / 遺伝学 / 発生・分化 / 育種学
Outline of Final Research Achievements

It is important to understand temporal regulation of leaf initiation for improving shoot architecture of plants in the future breeding program. This study revealed a part of the genetic network of plastochron regulation in rice. Both of the expression of PLA1 and PLA2 are induced by a plant hormone, gibberellin. PLA1 and PLA2 affect the expression level of OsSPLs that are regulatory genes for leaf initiation, in independent pathways. In addition, this study uncovered that APO1 and APO2 genes also control plastochron independent of PLA1 and PLA2. Over-expression of PLA1 and PLA2 affect the length of plastochron and organ size, indicating a modulation of PLA1 and PLA2 expression could be useful to improve morphological traits.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (18 results)

All 2014 2013 2012

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Invited: 2 results)

  • [Journal Article] Genetic interaction between rice PLASTOCHRON genes and the gibberellin pathway in leaf development2014

    • Author(s)
      Mimura M, Itoh JI
    • Journal Title

      Rice

      Volume: 7 Issue: 1 Pages: 25-25

    • DOI

      10.1186/s12284-014-0025-2

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] The rice FISH BONE gene encodes a tryptophan aminotransferase, which affects pleiotropic auxin-related processes.2014

    • Author(s)
      Yoshikawa T, Ito M, Sumikura T, Nakayama A, Nishimura T, Kitano H, Yamaguchi I, Koshiba T, Hibara K, Nagato Y, and Itoh J
    • Journal Title

      Plant J

      Volume: 78 Issue: 6 Pages: 927-936

    • DOI

      10.1111/tpj.12517

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Organ fusion and defective shoot development in oni3 mutants of rice2014

    • Author(s)
      Akiba T, Hibara K, Kimura F, Tsuda K, Shibata K, Ishibashi M, Moriya C, Nakagawa K, Kurata N, Itoh J-I, Ito Y
    • Journal Title

      Plant Cell Physiol

      Volume: 55 Issue: 1 Pages: 42-51

    • DOI

      10.1093/pcp/pct154

    • NAID

      40019968717

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] RiceFREND: a platform for retrieving coexpressed gene networks in rice.2013

    • Author(s)
      Sato Y, Namiki N, Takehisa H, Kamatsuki K, Minami H, Ikawa H, Ohyanagi H, Sugimoto K, Itoh J, Antonio BA, Nagamura Y.
    • Journal Title

      Nucleic Acids Res.

      Volume: 41 Issue: D1 Pages: 1214-122

    • DOI

      10.1093/nar/gks1122

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Change of shoot architecture during juvenile-to-adult phase transition in soybean.2013

    • Author(s)
      Yoshikawa T, Ozawa S, Sentoku N, Itoh JI, Nagato Y, Yokoi S.
    • Journal Title

      Planta

      Volume: 238 Issue: 1 Pages: 229-237

    • DOI

      10.1007/s00425-013-1895-z

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ABNORMAL SHOOT IN YOUTH, a homolog of molybdate transporter gene, regulates early shoot development in rice.2013

    • Author(s)
      Hibara, K-I., Hosoki, W., Hakoyama, T., Ohmori, Y., Fujiwara, T., Itoh,J-I. and Nagato, Y.
    • Journal Title

      Amer. J. Plant Sci.

      Volume: 4 Pages: 1-9

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rice SLENDER LEAF 1 gene encodes cellulose synthase-like D4 and is specifically expressed in M-phase cells to regulate cell proliferation.2013

    • Author(s)
      Yoshikawa T, Eiguchi M, Hibara KI, Ito JI, Nagato Y.
    • Journal Title

      J Exp Bot.

      Volume: 64 Issue: 7 Pages: 2049-2061

    • DOI

      10.1093/jxb/ert060

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rice DECUSSATE controls phyllotaxy by affecting the cytokinin signaling pathway2012

    • Author(s)
      Itoh, JI., Hibara, K., Kojima, M., Sakakibara, H. , Y. Nagato.
    • Journal Title

      Plant J.

      Volume: 72 Issue: 6 Pages: 869-881

    • DOI

      10.1111/j.1365-313x.2012.05123.x

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of transposon-derived small RNAs in the interplay between genomes and parasitic DNA in rice2012

    • Author(s)
      Misuzu Nosaka, Jun-ichi Itoh, Yasuo Nagato, Akemi Ono, Aiko Ishiwata, Yutaka Sato
    • Journal Title

      PLoS Genetics

      Volume: 8(9) Issue: 9 Pages: e1002953-e1002953

    • DOI

      10.1371/journal.pgen.1002953

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rice PLASTOCHRON genes regulate leaf maturation downstream of the gibberellin signal transduction pathway2012

    • Author(s)
      Mimura M, Nagato Y, Itoh J.
    • Journal Title

      Planta

      Volume: 235 Issue: 5 Pages: 1081-1089

    • DOI

      10.1007/s00425-012-1639-5

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] 茎頂分裂組織に異常を生じるイネ突然変異体camelの表現型解析と遺伝子同定2014

    • Author(s)
      小林久美子、桧原健一郎、伊藤純一、長戸康郎
    • Organizer
      日本育種学会
    • Place of Presentation
      南九州大学
    • Year and Date
      2014-09-26 – 2014-09-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] Molecular dissection of rice leaf development in wild type and various morphogenetic mutants2014

    • Author(s)
      Dechkrong P, Itoh J
    • Organizer
      日本育種学会
    • Place of Presentation
      南九州大学
    • Year and Date
      2014-09-26 – 2014-09-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] 地上部に多面的な異常を示すイネmkb3変異体の解析2014

    • Author(s)
      島野里美、桧原健一郎、伊藤純一
    • Organizer
      日本育種学会
    • Place of Presentation
      南九州大学
    • Year and Date
      2014-09-26 – 2014-09-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] イネの発生における凹凸形成の生物学的意義2014

    • Author(s)
      伊藤純一
    • Organizer
      日本植物学会
    • Place of Presentation
      明治大学
    • Year and Date
      2014-09-12 – 2014-09-14
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] イネにおける葉間期制御機構の遺伝学的解析2014

    • Author(s)
      三村真生、長戸康郎、伊藤純一
    • Organizer
      イネ遺伝学・分子生物学ワークショプ
    • Place of Presentation
      東京大学
    • Year and Date
      2014-07-11 – 2014-07-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] イネの葉間期制御に関わる遺伝子の遺伝的相互作用2014

    • Author(s)
      三村真生、長戸康郎、伊藤純一
    • Organizer
      日本育種学会第125回講演会
    • Place of Presentation
      東北大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] 葉序の異常を示すイネの突然変異体2014

    • Author(s)
      伊藤純一
    • Organizer
      第55回日本植物生理学会年会
    • Place of Presentation
      富山大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Rice PLASTOCHRON genes regulate organ size and act downstream of the gibberellin signaling pathway.2013

    • Author(s)
      M.Mimura, Y. Nagato, J. Itoh
    • Organizer
      7th International Rice Genetics Symposium
    • Place of Presentation
      Manila, Philippines,
    • Related Report
      2013 Annual Research Report

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Published: 2012-04-24   Modified: 2019-07-29  

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