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The Arabidopsis H3K27me3 demethylase JUMONJI 13 is a temperature and photoperiod dependent flowering repressor

Author

Listed:
  • Shuzhi Zheng

    (Hebei Normal University
    Chinese Academy of Sciences)

  • Hongmiao Hu

    (Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Huimin Ren

    (Hebei Normal University)

  • Zhenlin Yang

    (Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Qi Qiu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Weiwei Qi

    (Hebei Normal University)

  • Xinye Liu

    (Hebei Normal University)

  • Xiaomei Chen

    (Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences)

  • Xiekui Cui

    (Chinese Academy of Sciences)

  • Sisi Li

    (Department of Biology, Southern University of Science and Technology)

  • Bing Zhou

    (Chinese Academy of Sciences)

  • Daye Sun

    (Hebei Normal University)

  • Xiaofeng Cao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Chinese Academy of Sciences)

  • Jiamu Du

    (Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Southern University of Science and Technology, Shenzhen)

Abstract

In plants, flowering time is controlled by environmental signals such as day-length and temperature, which regulate the floral pathway integrators, including FLOWERING LOCUS T (FT), by genetic and epigenetic mechanisms. Here, we identify an H3K27me3 demethylase, JUMONJI 13 (JMJ13), which regulates flowering time in Arabidopsis. Structural characterization of the JMJ13 catalytic domain in complex with its substrate peptide reveals that H3K27me3 is specifically recognized through hydrogen bonding and hydrophobic interactions. Under short-day conditions, the jmj13 mutant flowers early and has increased FT expression at high temperatures, but not at low temperatures. In contrast, jmj13 flowers early in long-day conditions regardless of temperature. Long-day condition and higher temperature induce the expression of JMJ13 and increase accumulation of JMJ13. Together, our data suggest that the H3K27me3 demethylase JMJ13 acts as a temperature- and photoperiod-dependent flowering repressor.

Suggested Citation

  • Shuzhi Zheng & Hongmiao Hu & Huimin Ren & Zhenlin Yang & Qi Qiu & Weiwei Qi & Xinye Liu & Xiaomei Chen & Xiekui Cui & Sisi Li & Bing Zhou & Daye Sun & Xiaofeng Cao & Jiamu Du, 2019. "The Arabidopsis H3K27me3 demethylase JUMONJI 13 is a temperature and photoperiod dependent flowering repressor," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09310-x
    DOI: 10.1038/s41467-019-09310-x
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    Cited by:

    1. Qican Cheng & Yue Zeng & Sha Huang & Chuanwei Yang & Yu Xie & Wen-Hui Shen & Lin Li, 2024. "PHYTOCHROME-INTERACTING FACTOR 7 and RELATIVE OF EARLY FLOWERING 6 act in shade avoidance memory in Arabidopsis," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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