GENOMES UNCOUPLED PROTEIN1 binds to plastid RNAs and promotes their maturation.

ABSTRACT: Plastid biogenesis and the coordination of plastid and nuclear genome expression through anterograde and retrograde signaling are essential for plant development. GENOMES UNCOUPLED1 (GUN1) plays a central role in retrograde signaling during early plant development. The putative function of GUN1 has been extensively studied, but its molecular function remains controversial. Here, we evaluate published transcriptome data and generate our own data from gun1 mutants grown under signaling-relevant conditions to show that editing and splicing are not relevant for GUN1-dependent retrograde signaling. Our study of the plastid (post)transcriptome of gun1 seedlings with white and pale cotyledons demonstrates that GUN1 deficiency significantly alters the entire plastid transcriptome. By combining thi

SUBMITTER: Tang Q 

PROVIDER: S-EPMC11671767 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature