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SCARECROW-LIKE15 interacts with HISTONE DEACETYLASE19 and is essential for repressing the seed maturation programme

Author

Listed:
  • Ming-Jun Gao

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Xiang Li

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Jun Huang

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Gordon M. Gropp

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Branimir Gjetvaj

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Donna L. Lindsay

    (University of Saskatchewan)

  • Shu Wei

    (Key Laboratory of Tea Biochemistry and Biotechnology, Anhui Agricultural University)

  • Cathy Coutu

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Zhixiang Chen

    (Purdue University)

  • Xiao-Chun Wan

    (Key Laboratory of Tea Biochemistry and Biotechnology, Anhui Agricultural University)

  • Abdelali Hannoufa

    (Agriculture and Agri-Food Canada)

  • Derek J. Lydiate

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Margaret Y. Gruber

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

  • Z. Jeffrey Chen

    (Institute for Cellular and Molecular Biology, Center for Computational Biology and Bioinformatics, University of Texas at Austin)

  • Dwayne D. Hegedus

    (Agriculture and Agri-Food Canada, Saskatoon Research Centre)

Abstract

Epigenetic regulation of gene expression is critical for controlling embryonic properties during the embryo-to-seedling phase transition. Here we report that a HISTONE DEACETYLASE19 (HDA19)-associated regulator, SCARECROW-LIKE15 (SCL15), is essential for repressing the seed maturation programme in vegetative tissues. SCL15 is expressed in and GFP-tagged SCL15 predominantly localizes to, the vascular bundles particularly in the phloem companion cells and neighbouring specialized cells. Mutation of SCL15 leads to a global shift in gene expression in seedlings to a profile resembling late embryogenesis in seeds. In scl15 seedlings, many genes involved in seed maturation are markedly derepressed with concomitant accumulation of seed 12S globulin; this is correlated with elevated levels of histone acetylation at a subset of seed-specific loci. SCL15 physically interacts with HDA19 and direct targets of HDA19–SCL15 association are identified. These studies reveal that SCL15 acts as an HDA19-associated regulator to repress embryonic traits in seedlings.

Suggested Citation

  • Ming-Jun Gao & Xiang Li & Jun Huang & Gordon M. Gropp & Branimir Gjetvaj & Donna L. Lindsay & Shu Wei & Cathy Coutu & Zhixiang Chen & Xiao-Chun Wan & Abdelali Hannoufa & Derek J. Lydiate & Margaret Y., 2015. "SCARECROW-LIKE15 interacts with HISTONE DEACETYLASE19 and is essential for repressing the seed maturation programme," Nature Communications, Nature, vol. 6(1), pages 1-13, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8243
    DOI: 10.1038/ncomms8243
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