A method for identifying a quantitative trait locus associated with desirable nutritional traits in canola includes: analyzing a population of canola plants or germplasm for desirable nutritional traits; determining the genotype of the canola plants or germplasm using at least one marker selected from the group consisting of SEQ ID NO:1 through SEQ ID NO:111; mapping the canola plants or germplasm for the presence of a quantitative trait locus (QTL) associated with the markers; and associating the QTL with the desirable nutritional trait. An isolated and/or recombinant nucleic acid includes a sequence associated with a quantitative trait locus (QTL), wherein the QTL is associated with a desirable nutritional trait in a canola plant or germplasm and wherein the QTL is further associated with at least one marker selected from the group consisting of SEQ ID NO:1 through SEQ ID NO:111.一種用於識別油菜中與所欲的營養性狀相關之數量性狀基因座之方法,其包括:針對所欲的營養性狀分析一油菜植物或種原之族群;使用至少一種擇自於由序列辨識編號:1至序列辨識編號:111所構成之群組之標識,決定該油菜植物或種原之基因型;定位該油菜植物或種原中出現與該標識相關之數量性狀基因座(QTL);以及使該QTL與該所欲的營養性狀產生相關。一種單離和/或重組核酸,其包括與數量性狀基因座(QTL)相關之序列,其中該QTL與油菜植物或種原中之所欲的營養性狀相關,以及其中該QTL另外與至少一種擇自於由序列辨識編:1至序列辨識編號:111所構成之群組之標識相關。