Fig. 1

UPMGA dendrogram shows the relationship between the resistant (FSEQLD7R) and the susceptible (FBTARPBS) populations of flaxleaf fleabane for the within population study.a White clusters (represent resistant accession), gray clusters (represent susceptible accessions), and black clusters (represent resistant and susceptible accessions clustered together). b With the outsider populations of tall fleabane, bordered white clusters (resistant and susceptible populations’ standalone), white clusters (a group of resistant and susceptible populations clustered together), black clusters (resistant populations grouped together), light gray clusters (susceptible populations grouped together), and gray clusters (resistant and susceptible populations clustered with the outsider populations)