Genome-wide characterization of the tomato GASA family identifies SlGASA1 as a repressor of fruit ripening.

ABSTRACT: Gibberellins (GAs) play crucial roles in a wide range of developmental processes and stress responses in plants. However, the roles of GA-responsive genes in tomato (Solanum lycopersicum) fruit development remain largely unknown. Here, we identify 17 GASA (Gibberellic Acid-Stimulated Arabidopsis) family genes in tomato. These genes encode proteins with a cleavable signal peptide at their N terminus and a conserved GASA domain at their C terminus. The expression levels of all tomato GASA family genes were responsive to exogenous GA treatment, but adding ethylene eliminated this effect. Comprehensive expression profiling of SlGASA family genes showed that SlGASA1 follows a ripening-associated expression pattern, with low expression levels during frui

SUBMITTER: Su D 

PROVIDER: S-EPMC9832878 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature