Figure 1From: Section-level relationships of North American Agalinis (Orobanchaceae) based on DNA sequence analysis of three chloroplast gene regionsPlots depicting the relationship of pairwise maximum likelihood distances between taxa estimated from different gene regions Dashed lines represent the null hypothesis of equal distance for the gene regions being compared. Solid line represent the simple linear model estimated from the data: mat K = 0.013 + 1.615 × rbc L; ndh F = 0.004 + 2.184 × rbc L; ndh F = 0.004 + 0.878 × mat K.Back to article page