PlumX Metrics
Embed PlumX Metrics

Transcription factors KANADI 1, MYB DOMAIN PROTEIN 44, and PHYTOCHROME INTERACTING FACTOR 4 regulate long intergenic noncoding RNAs expressed in Arabidopsis roots

Plant Physiology, ISSN: 1532-2548, Vol: 193, Issue: 3, Page: 1933-1953
2023
  • 5
    Citations
  • 0
    Usage
  • 7
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Most Recent News

New Plant Proteins Study Findings Have Been Reported by Investigators at University of Ghent (Transcription Factors Kanadi 1, Myb Domain Protein 44, and Phytochrome Interacting Factor 4 Regulate Long Intergenic Noncoding Rnas Expressed In ...)

2023 AUG 08 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx Life Science Daily -- A new study on Proteins - Plant Proteins

Article Description

Thousands of long intergenic noncoding RNAs (lincRNAs) have been identified in plant genomes. While some lincRNAs have been characterized as important regulators in different biological processes, little is known about the transcriptional regulation for most plant lincRNAs. Through the integration of 8 annotation resources, we defined 6,599 high-confidence lincRNA loci in Arabidopsis (Arabidopsis thaliana). For lincRNAs belonging to different evolutionary age categories, we identified major differences in sequence and chromatin features, as well as in the level of conservation and purifying selection acting during evolution. Spatiotemporal gene expression profiles combined with transcription factor (TF) chromatin immunoprecipitation (ChIP) data were used to construct a TF-lincRNA regulatory network containing 2,659 lincRNAs and 15,686 interactions. We found that properties characterizing lincRNA expression, conservation, and regulation differ between plants and animals. Experimental validation confirmed the role of 3 TFs, KANADI 1, MYB DOMAIN PROTEIN 44, and PHYTOCHROME INTERACTING FACTOR 4, as key regulators controlling root-specific lincRNA expression, demonstrating the predictive power of our network. Furthermore, we identified 58 lincRNAs, regulated by these TFs, showing strong root cell type-specific expression or chromatin accessibility, which are linked with genome-wide association studies genetic associations related to root system development and growth. The multilevel genome-wide characterization covering chromatin state information, promoter conservation, and chromatin immunoprecipitation-based TF binding, for all detectable lincRNAs across 769 expression samples, permits rapidly defining the biological context and relevance of Arabidopsis lincRNAs through regulatory networks.

Bibliographic Details

Liu, Li; Heidecker, Michel; Depuydt, Thomas; Manosalva Perez, Nicolas; Crespi, Martin; Blein, Thomas; Vandepoele, Klaas

Oxford University Press (OUP)

Biochemistry, Genetics and Molecular Biology; Agricultural and Biological Sciences

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know