Breeding for Brown Rot (Monilinia spp.) Tolerance in Clemson university peach breeding program
Articolo
Data di Pubblicazione:
2018
Citazione:
Breeding for Brown Rot (Monilinia spp.) Tolerance in Clemson university peach breeding program / W. Fu, R. Burrell, C. Da Silva Linge, G. Schnabel, K. Gasic. - In: JOURNAL OF THE AMERICAN POMOLOGICAL SOCIETY. - ISSN 1527-3741. - 72:2(2018), pp. 94-100.
Abstract:
Brown rot, caused by Monilinia spp., is one of the most economically important diseases of stone fruits. The
fungus mainly affects the blossoms and fruit, and the resulting disease can lead to significant pre- and postharvest
yield losses. Estimated yearly cost to the U.S. stakeholders for chemical protection against the disease can reach
$170M. Although some degree of resistance in peach landraces (‘Bolinha’) and interspecific material (almond ×
peach) has been reported, genetic resistance to brown rot in peaches is still lacking. In commercial peach produc-
tion, the disease is managed by practicing sanitation and the application of fungicides. The Clemson University
peach breeding program within the RosBREED project aims to understand the genetics behind the peach fruit
response to brown rot with the ultimate goal of combining disease resistance with high fruit quality via DNA
informed breeding. To this end, 26 cultivars /advanced selections and 138 progeny, representing 9 breeding fami-
lies, with ‘Bolinha’ source of resistance have been phenotyped for fruit response to brown rot using wounded and
non-wounded disease assays in 2015 and 2016. Previously obtained genotypic data, and reported QTLs associat-
ed with brown rot response in peach fruit, were used to obtain preliminary information on variability in brown rot
associated genomic regions. Phenotypic performance or trait values of these alleles/ haplotypes were discussed.
The data presented here provide a foundation for developing predictive DNA information that has potential for
immediate application in U.S. peach breeding.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Disease; Fruit; Haploblock; QTL; RosBREED
Elenco autori:
W. Fu, R. Burrell, C. Da Silva Linge, G. Schnabel, K. Gasic
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