We investigated the potential of markers associated with floral traits for parental selection in a cut rose breeding program. We analysed six Kompetitive Allele Specific PCR (KASP) markers for three important floral traits, petal length, petal number and scent, derived from experiments in a garden rose population. The six markers were applied to genotype a collection of 384 parental genotypes used for commercial cut rose breeding. We phenotyped a selection of progeny derived from pairs of parents having either high or low dosages of (contrasting) marker alleles associated with these traits. Significant differences were found between the contrasting progeny groups for each of the traits, although parents with the optimal allele dosage combinations could not always be used for the crosses. This not only supports the robustness of these marker‒trait associations but also demonstrates their potential for commercial rose breeding. It also demonstrates the use of marker information generated in garden rose populations for cut rose breeding.

我们研究了与花性状相关的标记在切花玫瑰育种计划中用于亲本选择的潜力。我们分析了六个竞争性等位基因特异性 PCR (KASP) 标记，这些标记针对三个重要的花性状，即花瓣长度、花瓣数量和气味，这些标记源自花园月季群体的实验。这六个标记被用于对用于商业切花玫瑰育种的 384 个亲本基因型集合进行基因分型。我们对来自具有高或低剂量与这些性状相关的（对比）标记等位基因的父母对的后代进行了表型选择。尽管具有最佳等位基因剂量组合的亲本并不总能用于杂交，但在每个性状的对比后代组之间发现了显着差异。这不仅支持了这些标记性状关联的稳健性，而且还证明了它们在商业玫瑰育种中的潜力。它还演示了如何使用花园玫瑰种群中生成的标记信息进行切花玫瑰育种。