This thesis proposes an advanced strategy to improve the productivity and quality of melon using molecular markers associated with powdery mildew tolerance, a pathogen that compromises yield and crop shelf life. The work focused on identifying genetic markers associated with powdery mildew tolerance in melon varieties. Through Next- Generation Sequencing (NGS), the SNP421 marker was identified, which is linked to increased disease tolerance. This SNP was validated using several validation techniques, including High-Resolution Melting (HRM) analysis, Sanger sequencing, and rhAmp allele discrimination assays, proving effective for a more efficient marker-assisted selection compared to traditional phenotypic methods. The adoption of SNP421 in breeding programs enables the development of plants less susceptible to powdery mildew, reducing the need for chemical treatments and enhancing fruit shelf life and quality. Therefore, SNP421 represents a key tool for a more sustainable and competitive melon production that meets market challenges and food safety requirements.
Questa tesi propone una strategia avanzata per migliorare la produttività e la qualità del melone utilizzando marcatori molecolari legati alla tolleranza all'oidio, un patogeno che compromette resa e conservabilità del raccolto. Il lavoro si è concentrato sull'identificazione di marcatori genetici associati alla tolleranza all'oidio in varietà di melone. Tramite il sequenziamento Next-Generation Sequencing (NGS) è stato individuato il marcatore SNP421, correlato a una maggiore tolleranza alla malattia. Questo SNP è stato validato attraverso diverse tecniche di validazione, tra cui l’analisi High-Resolution Melting (HRM), il sequenziamento Sanger e saggi di discriminazione allelica rhAmp, dimostrandosi efficace per una selezione assistita più efficiente rispetto ai metodi fenotipici tradizionali. L'adozione di SNP421 nei programmi di breeding consente di ottenere piante meno suscettibili all'oidio, riducendo il bisogno di trattamenti chimici e migliorando shelf- life e qualità del frutto. SNP421 rappresenta dunque uno strumento chiave per una produzione di melone più sostenibile e competitiva, che risponde alle sfide del mercato e ai requisiti di sicurezza alimentare.
Miglioramento della produttività e qualità del melone (Cucumis melo L.) attraverso l'impiego di marcatori molecolari per la tolleranza alle avversità biotiche.
MISKEC, GORDAN
2023/2024
Abstract
This thesis proposes an advanced strategy to improve the productivity and quality of melon using molecular markers associated with powdery mildew tolerance, a pathogen that compromises yield and crop shelf life. The work focused on identifying genetic markers associated with powdery mildew tolerance in melon varieties. Through Next- Generation Sequencing (NGS), the SNP421 marker was identified, which is linked to increased disease tolerance. This SNP was validated using several validation techniques, including High-Resolution Melting (HRM) analysis, Sanger sequencing, and rhAmp allele discrimination assays, proving effective for a more efficient marker-assisted selection compared to traditional phenotypic methods. The adoption of SNP421 in breeding programs enables the development of plants less susceptible to powdery mildew, reducing the need for chemical treatments and enhancing fruit shelf life and quality. Therefore, SNP421 represents a key tool for a more sustainable and competitive melon production that meets market challenges and food safety requirements.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/77999