Exploring sources of resistance to brown rot in an interspecific almond × peach population
BACKGROUND: Monilinia spp. are responsible for brown rot, one of the most significant stone fruit diseases. Planting resistant cultivars seems a promising alternative, although most commercial cultivars are susceptible to brown rot. The aim of this study was to explore resistance to Monilinia fructicola over two seasons in a backcross one interspecific population between almond ‘Texas’ and peach ‘Earlygold’ (named T1E). RESULTS: ‘Texas’ almond was resistant to brown rot inoculation, whereas peach was highly susceptible. Phenotypic data from the T1E population indicated wide differences in response to M. fructicola. Additionally, several non-wounded individuals exhibited resistance to brown rot. Quantitative trait loci (QTLs) were identified in several linkage groups, but only two proximal QTLs in G4 were detected over both seasons and accounted for 11.3–16.2% of the phenotypic variation. CONCLUSION: Analysis of the progeny allowed the identification of resistant genotypes that could serve as a source of resistance in peach breeding programs. The finding of loci associated with brown rot resistance would shed light on implementing a strategy based on marker-assisted selection (MAS) for introgression of this trait into elite peach materials. New peach cultivars resistant to brown rot may contribute to the implementation of more sustainable crop protection strategies.
633 - Field crops and their production
Is part of
Journal of the Science of Food and Agriculture
Baró‐Montel, Núria, Iban Eduardo, Josep Usall, Carla Casals, Pere Arús, Neus Teixidó, and Rosario Torres. 2019. "Exploring Sources Of Resistance To Brown Rot In An Interspecific Almond × Peach Population". Journal Of The Science Of Food And Agriculture 99 (8): 4105-4113. Wiley. doi:10.1002/jsfa.9640.
Grant agreement number
MINECO/Programa Estatal de I+D+I orientada a los retos de la sociedad/AGL2014-55287-C2-2-R/ES/FACTORES DE PATOGENESIS Y BASE GENETICA DE LA RESISTENCIA DEL MELOCOTON PARA EL CONTROL SOSTENIBLE DE LA PODREDUMBRE PARDA/
INIA/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTA2015-00050-00-00/ES/Nuevas estrategias de mejora del melocotonero basadas en marcadores moleculares: introgresión asistida por marcadores y resíntesis/
MINECO/Programa Estatal de fomento de la investigación científica y técnica de excelencia/SEV-2015-0533/ES/ /
Genòmica i Biotecnologia
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- ARTICLES CIENTÍFICS 
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