Fig. 8From: Evaluation of genetic structure in European wheat cultivars and advanced breeding lines using high-density genotyping-by-sequencing approachPlot of the average within-group similarity relative to the number of groups (a). Scatterplot depicting the relationship between yield of varieties and their registration year (based on the data from 2015 to 2018 post-registration trials; regression line drawn using smoothing spline function with 4 degrees of freedom) (b)Back to article page