Fig. 4.

—Phylogenetic tree of ATS2 and PlsC. This is a collapsed BI tree of all members of Clusters 488 and 4242 with red algal sequences. The values on each branch indicate (a posterior probability of BI)/(a confidence value of ML). This tree was tentatively rooted according to the MAD method (Tria et al. 2017). Uncollapsed BI and ML trees are available as supplementary figures S6 and S7, Supplementary Material online. The alignment is available as supplementary data S6, Supplementary Material online. An alternative tree (BI/ML) without new sequences from Gclust2017R6 is available as supplementary figure S8, Supplementary Material online.