Overexpression of TCP8 delays Arabidopsis flowering through a FLOWERING LOCUS C-dependent pathway.

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  • Additional Information
    • Source:
      Publisher: BioMed Central Country of Publication: England NLM ID: 100967807 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2229 (Electronic) Linking ISSN: 14712229 NLM ISO Abbreviation: BMC Plant Biol Subsets: MEDLINE
    • Publication Information:
      Original Publication: London : BioMed Central, [2001-
    • Subject Terms:
    • Abstract:
      Background: Flowering is a key process in the life cycle of plants. The transition from vegetative to reproductive growth is thus under sophisticated regulation by endogenous and environmental signals. The plant-specific Teosinte Branched 1/Cycloidea/Proliferating Cell Factors (TCP) family transcription factors are involved in many biological processes, but their roles in regulating flowering have not been totally elucidated.
      Results: We explored the role of Arabidopsis TCP8 in plant development and, especially, in flowering control. Overexpression of TCP8 significantly delayed flowering under both long-day and short-day conditions and dominant repression by TCP8 led to various growth defects. The upregulation of TCP8 led to more accumulated mRNA level of FLOWERING LOCUS C (FLC), a central floral repressor of Arabidopsis. TCP8 functions in an FLC-dependent manner, as TCP8 overexpression in the flc-6 loss-of-function mutant failed to delay flowering. The vernalization treatment could reverse the late flowering phenotype caused by TCP8 overexpression.
      Conclusions: Our results provide evidence for a role of TCP8 in flowering control and add to our knowledge of the molecular basis of TCP8 function.
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    • Grant Information:
      2018A030313966 Natural Science Foundation of Guangdong Province; JCYJ20170818100038326 Shenzhen Science and Technology Innovation Committee
    • Contributed Indexing:
      Keywords: Arabidopsis; FLC; Flowering; TCP8; Vernalization
    • Accession Number:
      0 (Arabidopsis Proteins)
      0 (FLF protein, Arabidopsis)
      0 (MADS Domain Proteins)
      0 (TCP8 protein, Arabidopsis)
      0 (Transcription Factors)
    • Publication Date:
      Date Created: 20191205 Date Completed: 20200323 Latest Revision: 20200323
    • Publication Date:
      20240104
    • Accession Number:
      PMC6889539
    • Accession Number:
      10.1186/s12870-019-2157-4
    • Accession Number:
      31795938