A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato Plants

In the scenario of climate change, the availability of genetic resources for tomato cultivation that combine improved nutritional properties and more tolerance to water deficiency is highly desirable. Within this context, the molecular screenings of the Red Setter cultivar-based TILLING platform led...

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Main Authors: Angelo Petrozza, Stephan Summerer, Donato Melfi, Teresa Mango, Filippo Vurro, Manuele Bettelli, Michela Janni, Francesco Cellini, Filomena Carriero
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/14/6/1284
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author Angelo Petrozza
Stephan Summerer
Donato Melfi
Teresa Mango
Filippo Vurro
Manuele Bettelli
Michela Janni
Francesco Cellini
Filomena Carriero
author_facet Angelo Petrozza
Stephan Summerer
Donato Melfi
Teresa Mango
Filippo Vurro
Manuele Bettelli
Michela Janni
Francesco Cellini
Filomena Carriero
author_sort Angelo Petrozza
collection DOAJ
description In the scenario of climate change, the availability of genetic resources for tomato cultivation that combine improved nutritional properties and more tolerance to water deficiency is highly desirable. Within this context, the molecular screenings of the Red Setter cultivar-based TILLING platform led to the isolation of a novel lycopene ε-cyclase gene (SlLCY-E) variant (G/3378/T) that produces modifications in the carotenoid content of tomato leaves and fruits. In leaf tissue, the novel G/3378/T SlLCY-E allele enhances β,β-xanthophyll content at the expense of lutein, which decreases, while in ripe tomato fruit the TILLING mutation induces a significant increase in lycopene and total carotenoid content. Under drought stress conditions, the G/3378/T SlLCY-E plants produce more abscisic acid (ABA) and still conserve their leaf carotenoid profile (reduction of lutein and increase in β,β-xanthophyll content). Furthermore, under said conditions, the mutant plants grow much better and are more tolerant to drought stress, as revealed by digital-based image analysis and in vivo monitoring of the OECT (Organic Electrochemical Transistor) sensor. Altogether, our data indicate that the novel TILLING SlLCY-E allelic variant is a valuable genetic resource that can be used for developing new tomato varieties, improved in drought stress tolerance and enriched in fruit lycopene and carotenoid content.
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spelling doaj.art-e55492d2c8774bacba419a1f189e63672023-11-18T10:35:21ZengMDPI AGGenes2073-44252023-06-01146128410.3390/genes14061284A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato PlantsAngelo Petrozza0Stephan Summerer1Donato Melfi2Teresa Mango3Filippo Vurro4Manuele Bettelli5Michela Janni6Francesco Cellini7Filomena Carriero8ALSIA Centro Ricerche Metapontum Agrobios, s.s. Jonica 106, km 448.2, 75010 Metaponto, MT, ItalyALSIA Centro Ricerche Metapontum Agrobios, s.s. Jonica 106, km 448.2, 75010 Metaponto, MT, ItalyALSIA Centro Ricerche Metapontum Agrobios, s.s. Jonica 106, km 448.2, 75010 Metaponto, MT, ItalyALSIA Centro Ricerche Metapontum Agrobios, s.s. Jonica 106, km 448.2, 75010 Metaponto, MT, ItalyIstituto dei Materiali per l’Elettronica e il Magnetismo (IMEM-CNR), Parco Area delle Scienze 37/A, 43121 Parma, ItalyIstituto dei Materiali per l’Elettronica e il Magnetismo (IMEM-CNR), Parco Area delle Scienze 37/A, 43121 Parma, ItalyIstituto dei Materiali per l’Elettronica e il Magnetismo (IMEM-CNR), Parco Area delle Scienze 37/A, 43121 Parma, ItalyALSIA Centro Ricerche Metapontum Agrobios, s.s. Jonica 106, km 448.2, 75010 Metaponto, MT, ItalyALSIA Centro Ricerche Metapontum Agrobios, s.s. Jonica 106, km 448.2, 75010 Metaponto, MT, ItalyIn the scenario of climate change, the availability of genetic resources for tomato cultivation that combine improved nutritional properties and more tolerance to water deficiency is highly desirable. Within this context, the molecular screenings of the Red Setter cultivar-based TILLING platform led to the isolation of a novel lycopene ε-cyclase gene (SlLCY-E) variant (G/3378/T) that produces modifications in the carotenoid content of tomato leaves and fruits. In leaf tissue, the novel G/3378/T SlLCY-E allele enhances β,β-xanthophyll content at the expense of lutein, which decreases, while in ripe tomato fruit the TILLING mutation induces a significant increase in lycopene and total carotenoid content. Under drought stress conditions, the G/3378/T SlLCY-E plants produce more abscisic acid (ABA) and still conserve their leaf carotenoid profile (reduction of lutein and increase in β,β-xanthophyll content). Furthermore, under said conditions, the mutant plants grow much better and are more tolerant to drought stress, as revealed by digital-based image analysis and in vivo monitoring of the OECT (Organic Electrochemical Transistor) sensor. Altogether, our data indicate that the novel TILLING SlLCY-E allelic variant is a valuable genetic resource that can be used for developing new tomato varieties, improved in drought stress tolerance and enriched in fruit lycopene and carotenoid content.https://www.mdpi.com/2073-4425/14/6/1284<i>Solanum lycopersicum</i>induced mutationscarotenoid pathwayabiotic stressdigital image-based phenotypingbioristor
spellingShingle Angelo Petrozza
Stephan Summerer
Donato Melfi
Teresa Mango
Filippo Vurro
Manuele Bettelli
Michela Janni
Francesco Cellini
Filomena Carriero
A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato Plants
Genes
<i>Solanum lycopersicum</i>
induced mutations
carotenoid pathway
abiotic stress
digital image-based phenotyping
bioristor
title A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato Plants
title_full A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato Plants
title_fullStr A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato Plants
title_full_unstemmed A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato Plants
title_short A Lycopene ε-Cyclase TILLING Allele Enhances Lycopene and Carotenoid Content in Fruit and Improves Drought Stress Tolerance in Tomato Plants
title_sort lycopene ε cyclase tilling allele enhances lycopene and carotenoid content in fruit and improves drought stress tolerance in tomato plants
topic <i>Solanum lycopersicum</i>
induced mutations
carotenoid pathway
abiotic stress
digital image-based phenotyping
bioristor
url https://www.mdpi.com/2073-4425/14/6/1284
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