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Temporal dynamics of gene expression and histone marks at the Arabidopsis shoot meristem during flowering

Author

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  • Yuan You

    (Max Planck Institute for Developmental Biology
    Present address: Zentrum für Molekularbiologie der Pflanzen, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 32, Tübingen D-72076, Germany)

  • Aneta Sawikowska

    (Institute of Plant Genetics, Polish Academy of Sciences
    Present address: Department of Statistical and Mathematical Methods, Poznań University of Life Sciences, Wojska Polskiego 28, 60–637 Poznań, Poland)

  • Manuela Neumann

    (Max Planck Institute for Developmental Biology)

  • David Posé

    (Max Planck Institute for Developmental Biology
    Present address: Facultad de Ciencias, Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga–Consejo Superior de Investigaciones Científicas, Universidad de Málaga, 29071 Málaga, Spain)

  • Giovanna Capovilla

    (Max Planck Institute for Developmental Biology)

  • Tobias Langenecker

    (Max Planck Institute for Developmental Biology)

  • Richard A. Neher

    (Evolutionary Dynamics and Biophysics Group, Max Planck Institute for Developmental Biology
    Present address: Biozentrum, University of Basel, Klingelbergstrasse 50/70, CH—4056 Basel, Switzerland)

  • Paweł Krajewski

    (Institute of Plant Genetics, Polish Academy of Sciences)

  • Markus Schmid

    (Max Planck Institute for Developmental Biology
    Umeå Plant Science Centre, Umeå University)

Abstract

Plants can produce organs throughout their entire life from pluripotent stem cells located at their growing tip, the shoot apical meristem (SAM). At the time of flowering, the SAM of Arabidopsis thaliana switches fate and starts producing flowers instead of leaves. Correct timing of flowering in part determines reproductive success, and is therefore under environmental and endogenous control. How epigenetic regulation contributes to the floral transition has eluded analysis so far, mostly because of the poor accessibility of the SAM. Here we report the temporal dynamics of the chromatin modifications H3K4me3 and H3K27me3 and their correlation with transcriptional changes at the SAM in response to photoperiod-induced flowering. Emphasizing the importance of tissue-specific epigenomic analyses we detect enrichments of chromatin states in the SAM that were not apparent in whole seedlings. Furthermore, our results suggest that regulation of translation might be involved in adjusting meristem function during the induction of flowering.

Suggested Citation

  • Yuan You & Aneta Sawikowska & Manuela Neumann & David Posé & Giovanna Capovilla & Tobias Langenecker & Richard A. Neher & Paweł Krajewski & Markus Schmid, 2017. "Temporal dynamics of gene expression and histone marks at the Arabidopsis shoot meristem during flowering," Nature Communications, Nature, vol. 8(1), pages 1-12, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15120
    DOI: 10.1038/ncomms15120
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    Cited by:

    1. Xiaozhen Zhao & Yiming Wang & Bingqin Yuan & Hanxi Zhao & Yujie Wang & Zheng Tan & Zhiyuan Wang & Huijun Wu & Gang Li & Wei Song & Ravi Gupta & Kenichi Tsuda & Zhonghua Ma & Xuewen Gao & Qin Gu, 2024. "Temporally-coordinated bivalent histone modifications of BCG1 enable fungal invasion and immune evasion," Nature Communications, Nature, vol. 15(1), pages 1-16, December.

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