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Organellar carbon metabolism is co-ordinated with distinct developmental phases of secondary xylem

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Abstract
Subcellular compartmentation of plant biosynthetic pathways in the mitochondria and plastids requires coordinated regulation of nuclear encoded genes, and the role of these genes has been largely ignored by wood researchers. In this study, we constructed a targeted systems genetics coexpression network of xylogenesis in Eucalyptus using plastid and mitochondrial carbon metabolic genes and compared the resulting clusters to the aspen xylem developmental series. The constructed network clusters reveal the organization of transcriptional modules regulating subcellular metabolic functions in plastids and mitochondria. Overlapping genes between the plastid and mitochondrial networks implicate the common transcriptional regulation of carbon metabolism during xylem secondary growth. We show that the central processes of organellar carbon metabolism are distinctly coordinated across the developmental stages of wood formation, and are specifically associated with primary growth and secondary cell wall deposition. We also demonstrate that during xylogenesis, plastid targeted carbon metabolism is partially regulated by the central clock for carbon allocation towards primary and secondary xylem growth, and discuss these networks in the context of previously established associations with wood-related complex traits. This study provides a new resolution into the integration and transcriptional regulation of plastid and mitochondrial localized carbon metabolism during xylogenesis.
Keywords
Eucalyptus, Plastid, circadian clock, co-expression network, mitochondria, xylogenesis

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Please use this url to cite or link to this publication:

Chicago
Pinard, Desré, Ana Carolina Elisa Fierro Gutierrez, Kathleen Marchal, Alexander A Myburg, and Eshchar Mizrachi. 2019. “Organellar Carbon Metabolism Is Co-ordinated with Distinct Developmental Phases of Secondary Xylem.” New Phytologist.
APA
Pinard, D., Fierro Gutierrez, A. C. E., Marchal, K., Myburg, A. A., & Mizrachi, E. (2019). Organellar carbon metabolism is co-ordinated with distinct developmental phases of secondary xylem. NEW PHYTOLOGIST.
Vancouver
1.
Pinard D, Fierro Gutierrez ACE, Marchal K, Myburg AA, Mizrachi E. Organellar carbon metabolism is co-ordinated with distinct developmental phases of secondary xylem. NEW PHYTOLOGIST. 2019;
MLA
Pinard, Desré et al. “Organellar Carbon Metabolism Is Co-ordinated with Distinct Developmental Phases of Secondary Xylem.” NEW PHYTOLOGIST (2019): n. pag. Print.
@article{8608500,
  abstract     = {Subcellular compartmentation of plant biosynthetic pathways in the mitochondria and plastids requires coordinated regulation of nuclear encoded genes, and the role of these genes has been largely ignored by wood researchers. In this study, we constructed a targeted systems genetics coexpression network of xylogenesis in Eucalyptus using plastid and mitochondrial carbon metabolic genes and compared the resulting clusters to the aspen xylem developmental series. The constructed network clusters reveal the organization of transcriptional modules regulating subcellular metabolic functions in plastids and mitochondria. Overlapping genes between the plastid and mitochondrial networks implicate the common transcriptional regulation of carbon metabolism during xylem secondary growth. We show that the central processes of organellar carbon metabolism are distinctly coordinated across the developmental stages of wood formation, and are specifically associated with primary growth and secondary cell wall deposition. We also demonstrate that during xylogenesis, plastid targeted carbon metabolism is partially regulated by the central clock for carbon allocation towards primary and secondary xylem growth, and discuss these networks in the context of previously established associations with wood-related complex traits. This study provides a new resolution into the integration and transcriptional regulation of plastid and mitochondrial localized carbon metabolism during xylogenesis.},
  author       = {Pinard, Desr{\'e} and Fierro Gutierrez, Ana Carolina Elisa and Marchal, Kathleen and Myburg, Alexander A and Mizrachi, Eshchar},
  issn         = {0028-646X},
  journal      = {NEW PHYTOLOGIST},
  language     = {eng},
  title        = {Organellar carbon metabolism is co-ordinated with distinct developmental phases of secondary xylem},
  url          = {http://dx.doi.org/10.1111/nph.15739},
  year         = {2019},
}

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