DNA markers linked to Malus floribunda 821 scab resistance.
Breeding resistant apple plants is an alternative way to control fungal pathogens reducing the environmental impact due to the use of pesticides. The breeding of apple cultivars resistant to Venturia inaequalis could be much improved by marker-assisted selection. A molecular marker closely linked to the resistance locus called Vf could replace selection based on infection studies. To find such molecular markers, DNA of progenies from crossings of a resistant and a susceptible apple tree was subject to bulked segregant analysis. Two markers were found with a genetic distance of 10.6% and 19.7% recombination frequency to the Vf locus.
Koller
B
B
Institute of Plant Sciences, Swiss Federal Institute of Technology, ETH-Zürich.
Gianfranceschi
L
L
Seglias
N
N
McDermott
J
J
Gessler
C
C
D017931:DNA Primers; D018744:DNA, Plant / Q000235:genetics*; D005638:Fruit / Q000235:genetics* / Q000382:microbiology; D007113:Immunity, Innate / Q000235:genetics; D016133:Polymerase Chain Reaction / Q000379:methods; D013045:Species Specificity; D013098:Xylariales / Q000472:pathogenicity
D017931:DNA Primers; D018744:DNA, Plant