Chloroplast development and genomes uncoupled signaling are independent of the RNA-directed DNA methylation pathway.

ABSTRACT: The Arabidopsis genome is methylated in CG and non-CG (CHG, and CHH in which H stands for A, T, or C) sequence contexts. DNA methylation has been suggested to be critical for seed development, and CHH methylation patterns change during stratification and germination. In plants, CHH methylation occurs mainly through the RNA-directed DNA methylation (RdDM) pathway. To test for an involvement of the RdDM pathway in chloroplast development, we analyzed seedling greening and the maximum quantum yield of photosystem II (F_v/F_m) in Arabidopsis thaliana seedlings perturbed in components of that pathway. Neither seedling greening nor F_v/F_m in seedlings and adult plants were affected in this comprehensive set of mutants, indicating that alterations in the R

SUBMITTER: Wang L 

PROVIDER: S-EPMC7508864 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature