Putative resistance gene markers associated with quantitative trait loci for fire blight resistance in Malus 'Robusta 5' accessions.

ABSTRACT:

Background

Breeding of fire blight resistant scions and rootstocks is a goal of several international apple breeding programs, as options are limited for management of this destructive disease caused by the bacterial pathogen Erwinia amylovora. A broad, large-effect quantitative trait locus (QTL) for fire blight resistance has been reported on linkage group 3 of Malus 'Robusta 5'. In this study we identified markers derived from putative fire blight resistance genes associated with the QTL by integrating further genetic mapping studies with bioinformatics analysis of transcript profiling data and genome sequence databases.

Results

When several defined E.amylovora strains were used to inoculate three progenies from international breeding programs, all with 'Robusta 5' as a co

SUBMITTER: Gardiner SE 

PROVIDER: S-EPMC3443455 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature