Phenotypic and Gene Expression Analysis of Fruit Development of ‘Rojo Brillante’ and ‘Fuyu’ Persimmon (Diospyros kaki L.) Cultivars in Two Different Locations
Fruit development and maturation rely on intrinsic genetic programs involving hormone biosynthesis and signalling and environmental cues, integrating phenological cycles and climatic issues encompassing abiotic stresses and climate change. In persimmon trees, environmental inputs strongly influen...
| Autores principales: | , , , , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2024
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/20.500.11939/8964 https://www.mdpi.com/2073-4395/14/7/1555 |
| Sumario: | Fruit development and maturation rely on intrinsic genetic programs involving hormone
biosynthesis and signalling and environmental cues, integrating phenological cycles and climatic
issues encompassing abiotic stresses and climate change. In persimmon trees, environmental inputs
strongly influence fitness and agricultural performance, and fruit yield can be severely compromised
by them. We have grown two persimmon accessions (‘Rojo Brillante’ and ‘Fuyu’) under contrasting
meteorological conditions of two locations in Spain and Japan. Fruit size, colour change, and firmness
parameters were followed during fruit development from 30 days after fruit set until commercial
ripening, and the expression of genes related to ethylene production and signalling, gibberellin
response, carotenoid biosynthesis, cell wall dynamics, and oxidative stress were reported. Genes
depending on intrinsic developmental programs (ethylene and ripening variables, mostly) showed
common expression trends in both cultivars and locations, whereas gibberellin and abiotic stressrelated
genes mimicked reduced fruit growth and abiotic stress associated with higher summer
temperatures (>35 ◦C) and lower rainfall reported in the Spanish location. The expression pattern
of these genes is consistent with a growth–defence trade-off that explains fruit differential growth
through hormonal and stress tolerance mechanisms. |
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