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    Epigenetic Control of Carotenogenesis During Plant Development

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    Name:
    epigenetis control_BPTS_A_1866829_PROOF.pdf
    Size:
    1.059Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2022-01-27
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    Type
    Article
    Authors
    Anwar, Sidra cc
    Brenya, Eric cc
    Alagoz, Yagiz cc
    Cazzonelli, Christopher I. cc
    KAUST Department
    King Abdullah University of Science and Technology, Division of Biological and Environmental Sciences and Engineering, Center for Desert Agriculture, the BioActives Lab, Thuwal, 23955-6900, Kingdom of Saudi Arabia
    Date
    2021-01-27
    Embargo End Date
    2022-01-27
    Permanent link to this record
    http://hdl.handle.net/10754/667286
    
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    Abstract
    Carotenoids are secondary metabolites synthesized in plastids that function in photosynthesis, photoprotection, growth and development of plants. Carotenoids contribute to the yellowish, orange and pinkish-red hues of leaves, flowers and fruits, as well as various aromas. They provide substrates for the biosynthesis of phytohormones and are cleavable into smaller apocarotenoids that function as retrograde signals and/or mediate intracellular communication as well as regulate gene transcription and/or protein translation. Carotenoid biosynthesis and gene regulation are tightly coordinated with tissue-specific plastid differentiation, seedling morphogenesis, fruit development, and prevailing environmental growth conditions such as light, temperature and mycorrhizal interactions. In the last decade, epigenetic processes have been linked to the regulation of carotenoid biosynthesis, accumulation and degradation during plant development. Next-generation sequencing approaches have shed new light on key rate-limiting steps in carotenoid pathways targeted by epigenetic modifications that synchronize carotenoid accumulation with plastid development and morphogenesis. We discuss how histone modifications (methylation and acetylation), DNA methylation and demethylation, as well as small RNA gene silencing processes can modulate carotenoid biosynthesis, accumulation and apocarotenoid generation throughout the plants’ life cycle: from seed germination to fruit morphogenesis. This review highlights how apocarotenoid signals regulate plastid biogenesis and gene expression in sync with chromatin alterations during skotomorphogenesis and photo-morphogenesis. We provide a new perspective based upon emerging evidence that supports a likely role for carotenoids in contributing to the programming and/or maintenance of the plants' epigenetic landscape.
    Citation
    Anwar, S., Brenya, E., Alagoz, Y., & Cazzonelli, C. I. (2021). Epigenetic Control of Carotenogenesis During Plant Development. Critical Reviews in Plant Sciences, 1–37. doi:10.1080/07352689.2020.1866829
    Sponsors
    CIC conceived review and critical perspectives. SA, YA, EB and CIC wrote the sRNA, histone, DNA methylation and chromatin sections, respectively. SA YA and CIC generated figures and the table. All authors read, edited and approved the manuscript. CIC supervised SA, YA and EB.
    Publisher
    Informa UK Limited
    Journal
    Critical Reviews in Plant Sciences
    DOI
    10.1080/07352689.2020.1866829
    Additional Links
    https://www.tandfonline.com/doi/full/10.1080/07352689.2020.1866829
    ae974a485f413a2113503eed53cd6c53
    10.1080/07352689.2020.1866829
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