—Variation in plastid genome size across the volvocine line (A) and chlamydomonadalean algae (B). Organismal and plastid genome features are shown in the table above the tree in (A) (inverted repeat region; inv. rpt.). Branching orders based on published phylogenetic analyses, including Nozaki et al. (2006, 2015), Nakada et al. (2008), Herron et al. (2009), and Lemieux et al. (2015). Genome sizes based on published and/or GenBank data. Sample size shown in blue circle.