IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v9y2018i1d10.1038_s41467-018-07763-0.html
   My bibliography  Save this article

Chromatin-mediated feed-forward auxin biosynthesis in floral meristem determinacy

Author

Listed:
  • Nobutoshi Yamaguchi

    (Nara Institute of Science and Technology
    Japan Science and Technology Agency)

  • Jiangbo Huang

    (National University of Singapore)

  • Yoshitaka Tatsumi

    (Nara Institute of Science and Technology)

  • Masato Abe

    (Nara Institute of Science and Technology)

  • Shigeo S. Sugano

    (Japan Science and Technology Agency
    Ritsumeikan University)

  • Mikiko Kojima

    (RIKEN Center for Sustainable Resource Science)

  • Yumiko Takebayashi

    (RIKEN Center for Sustainable Resource Science)

  • Takatoshi Kiba

    (Nagoya University)

  • Ryusuke Yokoyama

    (Tohoku University)

  • Kazuhiko Nishitani

    (Tohoku University)

  • Hitoshi Sakakibara

    (RIKEN Center for Sustainable Resource Science
    Nagoya University)

  • Toshiro Ito

    (Nara Institute of Science and Technology)

Abstract

In flowering plants, the switch from floral stem cell maintenance to gynoecium (female structure) formation is a critical developmental transition for reproductive success. In Arabidopsis thaliana, AGAMOUS (AG) terminates floral stem cell activities to trigger this transition. Although CRABS CLAW (CRC) is a direct target of AG, previous research has not identified any common targets. Here, we identify an auxin synthesis gene, YUCCA4 (YUC4) as a common direct target. Ectopic YUC4 expression partially rescues the indeterminate phenotype and cell wall defects that are caused by the crc mutation. The feed-forward YUC4 activation by AG and CRC directs a precise change in chromatin state for the shift from floral stem cell maintenance to gynoecium formation. We also showed that two auxin-related direct CRC targets, YUC4 and TORNADO2, cooperatively contribute to the termination of floral stem cell maintenance. This finding provides new insight into the CRC-mediated auxin homeostasis regulation for proper gynoecium formation.

Suggested Citation

  • Nobutoshi Yamaguchi & Jiangbo Huang & Yoshitaka Tatsumi & Masato Abe & Shigeo S. Sugano & Mikiko Kojima & Yumiko Takebayashi & Takatoshi Kiba & Ryusuke Yokoyama & Kazuhiko Nishitani & Hitoshi Sakakiba, 2018. "Chromatin-mediated feed-forward auxin biosynthesis in floral meristem determinacy," Nature Communications, Nature, vol. 9(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07763-0
    DOI: 10.1038/s41467-018-07763-0
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-018-07763-0
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-018-07763-0?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07763-0. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.