title: Quantitative resistance to barley leaf stripe (Pyrenophora graminea) is dominated by one major locus.
abstract: A major gene underlying quantitative resistance of barley against Pyrenophora graminea, a seedborne pathogen causing leaf stripe, was mapped with molecular markers in a barley doubled haploid (DH) population derived from the cross 'Proctor' x 'Nudinka'. This quantitative trait locus (QTL) accounts for r (2)= 58.5% and was mapped on barley chromosome 1, tightly linked to the "naked" gene. A second resistance QTL accounting for 29.3% of the variation in the trait was identified on the P arm of barley chromosome 2. Another two minor QTLs were detected by further analysis. None of the QTLs was found in the barley chromosome 2 "Vada" region studied by Giese et al. (1993).
authors.affiliation: Section of Fiorenzuola d'Arda, Experimental Institute for Cereal Research, Via S. Protaso 302, I-29017, Fiorenzuola d'Arda (PC), Italy.
authors.forename: N
authors.initials: N
authors.lastname: Pecchioni
authors.forename: P
authors.initials: P
authors.lastname: Faccioli
authors.forename: H
authors.initials: H
authors.lastname: Toubia-Rahme
authors.forename: G
authors.initials: G
authors.lastname: Valè
authors.forename: V
authors.initials: V
authors.lastname: Terzi