Scientists map the hidden control system behind fruit softening
Wu Z, Zhang B, Lin Z, Ren Z
Crop Improvement
The peach that bruises before you get it home or the tomato that turns to mush in your fridge is following a genetic script researchers can now read, and eventually rewrite.
Fruit gets soft because a cascade of hormones and genes flips on a demolition crew that breaks down cell walls. This review pulls together decades of research on that process across many fruit types and shows that genes and chemical tags on DNA actually talk back and forth, locking ripening in place once it starts. Understanding that feedback loop gives plant breeders new levers to pull for fruit that ripens on schedule but resists turning mushy too fast.
Key Findings
Synthesizes hormonal signaling, transcription factor networks, epigenetic modulation, and cell wall breakdown into one integrated multilayer model of fruit softening across both climacteric and non-climacteric fruits
Identifies reciprocal regulation between transcription factors and the epigenetic landscape as a key mechanism that stabilizes the ripening state and integrates environmental signals
Highlights persistent research gaps, including limited conservation of regulatory mechanisms across species and unresolved cell-to-cell heterogeneity, and proposes single-cell multi-omics, 3D genomics, and precision genome editing to address them
chevron_right Technical Summary
Scientists mapped out how fruit ripening and softening are controlled by a web of hormones, genes, and chemical switches on DNA, revealing new targets for breeding fruit that stays firm longer and wastes less after harvest.
Abstract Preview
Original paper
An integrated multilayer network orchestrating fruit softening: From hormonal crosstalk to epigenetic regulation.
Fruit softening determines postharvest quality but also drives postharvest losses. Despite extensive research, a fully integrated view of its underlying molecular network remains lacking. Drawing o...
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