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Novel loci associated with resistance to downy and powdery mildew in grapevine.
Ricciardi, Valentina; Crespan, Manna; Maddalena, Giuliana; Migliaro, Daniele; Brancadoro, Lucio; Maghradze, David; Failla, Osvaldo; Toffolatti, Silvia Laura; De Lorenzis, Gabriella.
Afiliación
  • Ricciardi V; Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy.
  • Crespan M; Centro di Ricerca per la Viticoltura e l'Enologia, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Conegliano, Italy.
  • Maddalena G; Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy.
  • Migliaro D; Centro di Ricerca per la Viticoltura e l'Enologia, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Conegliano, Italy.
  • Brancadoro L; Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy.
  • Maghradze D; Faculty of Viticulture-Winemaking, Caucasus International University, Tbilisi, Georgia.
  • Failla O; Faculty of Agricultural Sciences and Biosystems Engineering, Georgian Technical University, Tbilisi, Georgia.
  • Toffolatti SL; Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy.
  • De Lorenzis G; Dipartimento di Scienze Agrarie ed Ambientali, Università degli Studi di Milano, Milano, Italy.
Front Plant Sci ; 15: 1386225, 2024.
Article en En | MEDLINE | ID: mdl-38584944
ABSTRACT
Among the main challenges in current viticulture, there is the increasing demand for sustainability in the protection from fungal diseases, such as downy mildew (DM) and powdery mildew (PM). Breeding disease-resistant grapevine varieties is a key strategy for better managing fungicide inputs. This study explores the diversity of grapevine germplasm (cultivated and wild) from Caucasus and neighboring areas to identify genotypes resistant to DM and PM, based on 13 Simple Sequence Repeat (SSR) loci and phenotypical (artificial pathogen inoculation) analysis, and to identify loci associated with DM and PM resistance, via Genome-Wide Association Analysis (GWAS) on Single Nucleotide Polymorphism (SNP) profiles. SSR analysis revealed resistant alleles for 16 out of 88 genotypes. Phenotypic data identified seven DM and 31 PM resistant genotypes. GWAS identified two new loci associated with DM resistance, located on chromosome 15 and 16 (designated as Rpv36 and Rpv37), and two with PM resistance, located on chromosome 6 and 17 (designated as Ren14 and Ren15). The four novel loci identified genomic regions rich in genes related to biotic stress response, such as genes involved in pathogen recognition, signal transduction and resistance response. This study highlights potential candidate genes associated with resistance to DM and PM, providing valuable insights for breeding programs for resistant varieties. To optimize their utilization, further functional characterization studies are recommended.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Plant Sci Año: 2024 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Plant Sci Año: 2024 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Suiza