Mutations in the floral regulator gene HUA2 restore flowering to the Arabidopsis trehalose 6-phosphate synthase1 (tps1) mutant.

ABSTRACT: Plant growth and development are regulated by many factors, including carbohydrate availability and signaling. Trehalose 6-phosphate (T6P), which is synthesized by TREHALOSE-6-PHOSPHATE SYNTHASE 1 (TPS1), is positively associated with and functions as a signal that informs the cell about the carbohydrate status. Mutations in TPS1 negatively affect the growth and development of Arabidopsis (Arabidopsis thaliana), and complete loss-of-function alleles are embryo-lethal, which can be overcome using inducible expression of TPS1 (GVG::TPS1) during embryogenesis. Using ethyl methane sulfonate mutagenesis in combination with genome re-sequencing, we have identified several alleles in the floral regulator gene HUA2 that restore flowering in tps1-2 GVG::TPS1. Genetic analyses using an HUA2 T-DNA in

SUBMITTER: Zeng L 

PROVIDER: S-EPMC12198769 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature