The resistance locus
PlARG originates from the wild species
Helianthus argophyllus and effectively protects sunflower (
H.
annuus) against all known races of downy mildew (
Plasmopara halstedii). To determine the molecular structure of the
PlARG locus fine mapping was performed in the population (cms)HA342 x ARG1575-2 encompassing 2145 F
2 individuals. Cosegregating resistance gene candidates RGC151, RGC52a, and RGC52b as well as closely flanking markers were genetically mapped. Resistance gene candidates were isolated in a BAC library and additional candidate genes were identified by transcript analyses.
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The resistance locus
PlARG originates from the wild species
Helianthus argophyllus and effectively protects sunflower (
H.
annuus) against all known races of downy mildew (
Plasmopara halstedii). To determine the molecular structure of the
PlARG locus fine mapping was performed in the population (cms)HA342 x ARG1575-2 encompassing 2145 F
2 individuals. Cosegregating resistance gene candidates RGC151, RGC52a, and RGC52b as well as closely flanking markers were genetically mapped. Resistance gene can...
»