ArticleMolecular horticulture2022
The SlSHN2 transcription factor contributes to cuticle formation and epidermal patterning in tomato fruit.
Article in Molecular horticulture, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 24 citations in OpenAlex.
- Seed Priming with Gibberellic Acid Enhances Drought Tolerance in Sweet Sorghum by Modulating Cuticular Wax and Cutin Composition.Plants (Basel, Switzerland) · 2026Article
- Targeting the tomato fruit epidermis using the nsLTP2 promoter: a molecular tool to study the composition, architecture and properties of the cuticle.Plant methods · 2026Article
- Transcriptional control of cuticle formation during development.Journal of experimental botany · 2026Review
- Grape Berry Splitting Is Correlated with Cell Wall Pectin Content and Cutin Composition.Journal of agricultural and food chemistry · 2025Article
- Organ-level gene-regulatory networks inferred from transcriptomic data reveal context-specific regulation and highlight novel regulators of ripening and ABA-mediated responses in tomato.Plant communications · 2025Article
- The role, regulation and application of plant fruit trichomes.Molecular horticulture · 2025Review
- Exploring the sheen: a review of research advances on fruit glossiness.Frontiers in plant science · 2025Review
- Fruit ripening and postharvest changes in very early-harvested tomatoes.Horticulture research · 2024Article
- Cuticle deposition ceases during strawberry fruit development.BMC plant biology · 2024Article
- Dissection of mRNA acMolecular horticulture · 2024Article
- Microscopic and metabolic investigations disclose the factors that lead to skin cracking in chili-type pepper fruit varieties.Horticulture research · 2023Article
- The cutin polymer matrix undergoes a fine architectural tuning from early tomato fruit development to ripening.Plant physiology · 2022Article
- Tomato molecular biology - special collection of papers for molecular horticulture.Molecular horticulture · 2022Article
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
Tomato (Solanum lycopersicum) is an established model for studying plant cuticle because of its thick cuticle covering and embedding the epidermal cells of the fruit. In this study, we screened an EMS mutant collection of the miniature tomato cultivar Micro-Tom for fruit cracking mutants and found a mutant displaying a glossy fruit phenotype. By using an established mapping-by-sequencing strategy, we identified the causal mutation in the SlSHN2 transcription factor that is specifically expressed in outer epidermis of growing fruit. The point mutation in the shn2 mutant introduces a K to N amino acid change in the highly conserved 'mm' domain of SHN proteins. The cuticle from shn2 fruit showed a ~ fivefold reduction in cutin while abundance and composition of waxes were barely affected. In addition to alterations in cuticle thickness and properties, epidermal patterning and polysaccharide composition of the cuticle were changed. RNAseq analysis further highlighted the altered expression of hundreds of genes in the fruit exocarp of shn2, including genes associated with cuticle and cell wall formation, hormone signaling and response, and transcriptional regulation. In conclusion, we showed that a point mutation in the transcriptional regulator SlSHN2 causes major changes in fruit cuticle formation and its coordination with epidermal patterning.
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