2024-03-28T21:25:47Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2071432020-10-07T10:16:08Zcom_10261_7102com_10261_1col_10261_7103
http://hdl.handle.net/10261/207143
10.1002/jsfa.9640
387704
Exploring sources of resistance to brown rot in an interspecific almond × peach population
Society of Chemical Industry
John Wiley & Sons
2019
artículo
Baró‐Montel, Núria
Eduardo, Iban
Usall, Josep
Casals, Carla
Arús, Pere
Teixidó, Neus
Torres, Rosario
2019
[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.
Ministerio de Economía y Competitividad (España)
Ministerio de Economía, Industria y Competitividad (España)
Generalitat de Catalunya
Journal of the Science of Food and Agriculture
2019
99
4105
4113