Characterization of a tomato chlh mis-sense mutant reveals a new function of ChlH in fruit ripening.

ABSTRACT: Tomato fruit ripening is a complex developmental process that is important for fruit quality and shelf life. Many factors, including ethylene and several key transcription factors, have been shown to play important roles in the regulation of tomato fruit ripening. However, our understanding of the regulation of tomato fruit ripening is still limited. Here, we describe mut26, an EMS-induced tomato (Solanum lycopersicum) mutant that exhibits chlorophyll-deficient phenotypes in various organs, including fruits. Genetic mapping and functional analyses revealed that a single-nucleotide substitution and a corresponding Pro398->Ser mis-sense mutation in SlChlH (GENOMES UNCOUPLED 5, GUN5), which encodes the H subunit of magnesium chelatase, are responsible for the defects in the mut26 strain. Tran

SUBMITTER: Xu D 

PROVIDER: S-EPMC11869169 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature