Discovery and introgression of the wild sunflower-derived novel downy mildew resistance gene lass="a-plus-plus">Pl <sub class="a-plus-plus"> lass="a-plus-plus">19 sub> in confection sunflower (lass="a-plus-plus">Helianthus annuus L.)
Key messageA new downy mildew resistance gene,Pl<sub>19sub>, was identified from wildHelianthus annuusaccession PI 435414, introduced to confection sunflower, and genetically mapped to linkage group 4 of the sunflower genome.