Diagenode

Interplay between coding and non-coding regulation drives the Arabidopsis seed-to-seedling transition


Trembley B.J.M. et al.

Translation of seed stored mRNAs is essential to trigger germination. However, when RNAPII re-engages RNA synthesis during the seed-to-seedling transition has remained in question. Combining csRNA-seq, ATAC-seq and smFISH in Arabidopsis thaliana we demonstrate that active transcription initiation is detectable during the entire germination process. Features of non-coding regulation such as dynamic changes in chromatin accessible regions, antisense transcription, as well as bidirectional non-coding promoters are widespread throughout the Arabidopsis genome. We show that sensitivity to exogenous ABSCISIC ACID (ABA) during germination depends on proximal promoter accessibility at ABA-responsive genes. Moreover, we provide genetic validation of the existence of divergent transcription in plants. Our results reveal that active enhancer elements are transcribed producing non-coding enhancer RNAs (eRNAs) as widely documented in metazoans. In sum, this study defining the extent and role of coding and non-coding transcription during key stages of germination expands our understanding of transcriptional mechanisms underlying plant developmental transitions.

Tags
ATAC-seq

Share this article

Published
February, 2024

Source

Products used in this publication

  • ATAC-seq kit
    C01080002
    ATAC-seq kit
  • Kit icon
    C01011034
    24 UDI for Tagmented libraries - Set I

       Site map   |   Contact us   |   Conditions of sales   |   Conditions of purchase   |   Privacy policy