The BRAHMA-associated SWI/SNF chromatin remodeling complex controls Arabidopsis seed quality and physiology.

ABSTRACT: The SWI/SNF (SWItch/Sucrose Non-Fermentable) chromatin remodeling complex is involved in various aspects of plant development and stress responses. Here, we investigated the role of BRM (BRAHMA), a core catalytic subunit of the SWI/SNF complex, in Arabidopsis thaliana seed biology. brm-3 seeds exhibited enlarged size, reduced yield, increased longevity, and enhanced secondary dormancy, but did not show changes in primary dormancy or salt tolerance. Some of these phenotypes depended on the expression of DOG1, a key regulator of seed dormancy, as they were restored in the brm-3 dog1-4 double mutant. Transcriptomic and metabolomic analyses revealed that BRM and DOG1 synergistically modulate the expression of numerous genes. Some of the changes observed in the brm-3 mutant, including increased

SUBMITTER: Wrona M 

PROVIDER: S-EPMC11668257 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature