Pigment-Related Mutations Greatly Affect Berry Metabolome in San Marzano Tomatoes
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Otros documentos de la autoría: Dono, Gabriella; Rambla, José L.; frusciante, sarah; Fabene, Eleonora; Gomez-Cadenas, Aurelio; Granell, Antonio; Diretto, Gianfranco; MAZZUCATO, Andrea
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Título
Pigment-Related Mutations Greatly Affect Berry Metabolome in San Marzano TomatoesAutoría
Fecha de publicación
2022ISSN
2311-7524Cita bibliográfica
Dono, G.; Rambla, J.L.; Frusciante, S.; Fabene, E.; Gómez-Cadenas, A.; Granell, A.; Diretto, G.; Mazzucato, A. Pigment-Related Mutations Greatly Affect Berry Metabolome in San Marzano Tomatoes. Horticulturae 2022, 8, 120. https://doi.org/ 10.3390/horticulturae8020120Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Descripción
The study describes the alterations in metabolomic profiles of four tomato fruit mutations
introgressed into Solanum lycopersicum cv. San Marzano, a well-known Italian traditional variety.
Three lines carrying ... [+]
The study describes the alterations in metabolomic profiles of four tomato fruit mutations
introgressed into Solanum lycopersicum cv. San Marzano, a well-known Italian traditional variety.
Three lines carrying variants affecting the content of all pigments, high pigment-1 (hp-1), hp-2, pigment diluter (pd), and a combination of Anthocyanin fruit and atroviolaceum (Aft_atv), were selected,
and characterized. Biochemical analysis of 44 non-polar, 133 polar, and 65 volatile metabolites in
ripe fruits revealed a wide range of differences between the variant lines and the recurrent parent
San Marzano. Among non-polar compounds, many carotenoids, plastoquinones, and tocopherols
increased in the fruit of high pigment lines, as well as in Aft_atv, whose β-carotene levels increased
too. Interestingly, pd displayed enriched levels of xanthophylls (all-trans-neoxanthin and luteoxanthin) but, simultaneously, decreased levels of α-and β-/γ-tocopherols. Looking at the metabolites
in the polar fraction, a significant decrease in sugar profile was observed in hp-1, pd, and Aft_atv.
Conversely, many vitamins and organic acids increased in the hp-2 and Aft_atv lines, respectively.
Overall, phenylpropanoids was the metabolic group with the highest extent of polar changes, with
considerable increases of many compounds mainly in the case of Aft_atv, followed by the pd and hp-2
lines. Finally, several flavor-related compounds were found to be modified in all mutants, mostly
due to increased levels in many benzenoid, lipid, and phenylalanine derivative volatiles, which
are associated with sweeter taste and better aroma. Construction of metabolic maps, interaction
networks, and correlation matrices gave an integrated representation of the large effect of single
variants on the tomato fruit metabolome. In conclusion, the identified differences in the mutated
lines might contribute to generating novel phenotypes in the traditional San Marzano type, with
increased desirable nutraceutical and organoleptic properties. [-]
Publicado en
Horticulturae 2022, 8, 120Derechos de acceso
info:eu-repo/semantics/openAccess
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