Summary
This review synthesises the molecular genetics of tomato ripening, a model climacteric fruit system. The authors integrate findings from molecular tools and ripening-affected mutants to describe how ethylene and transcription factors form regulatory networks controlling the coordinated developmental changes in texture, colour, flavour compounds, and nutritional quality. The framework positions tomato as an important experimental system for understanding ripening control across fruit crops.
Regional applicability
Findings are directly applicable to United Kingdom horticulture and plant breeding programmes, as tomato is a widely grown glasshouse and field crop. The genetic insights into ripening mutants and ethylene regulation inform breeding strategies for improved flavour, shelf-life, and nutritional quality in UK-grown and imported tomato varieties.
Key measures
Gene expression patterns; ethylene synthesis and perception; fruit softening; pigment, sugar, acid, and volatile compound accumulation; ripening mutant phenotypes (rin, nor, Cnr)
Outcomes reported
The paper describes the genetic and molecular framework controlling tomato fruit ripening, including the coordinated regulation of thousands of genes responsible for fruit softening, pigment accumulation, sugar and acid development, and volatile compound production. It establishes ethylene and associated transcription factors as central regulatory networks in the ripening process.
Topic tags
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