Histone methyltransferases SDG33 and SDG34 regulate organ-specific nitrogen responses in tomato.

ABSTRACT: Histone posttranslational modifications shape the chromatin landscape of the plant genome and affect gene expression in response to developmental and environmental cues. To date, the role of histone modifications in regulating plant responses to environmental nutrient availability, especially in agriculturally important species, remains largely unknown. We describe the functions of two histone lysine methyltransferases, SET Domain Group 33 (SDG33) and SDG34, in mediating nitrogen (N) responses of shoots and roots in tomato. By comparing the transcriptomes of CRISPR edited tomato lines sdg33 and sdg34 with wild-type plants under N-supplied and N-starved conditions, we uncovered that SDG33 and SDG34 regulate overlapping yet distinct downstream gene targets. In response to N lev

SUBMITTER: Bvindi C 

PROVIDER: S-EPMC9606235 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature