Fig. 2.

Plastome inversions and overdispersed repeats on maximum likelihood phylogram of 30 Astragalus taxa and Oxytropis bicolor from a concatenated alignment of locally colinear blocks (LCBs) identified using progressiveMauve (Darling et al. 2010). The tree is consistent with previous phylogenies of Astragalus at a higher level (Wojciechowski 2005; Scherson et al. 2008; Azani et al. 2019; Su et al. 2021) with Neo-Astragalus a well-supported clade nested within Old World and euploid North American taxa. Bootstrap support values from 1,000 ultrafast bootstrap replicates are shown with color-coded circles. Branch lengths are in units of substitutions per site.