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Phylogenetic structure surrounding SAHNTO clusters, including taxa and node support of SAHNTO (⋆) sisters in carotenoid biosynthesis phylogenies: (A) CrtB/CrtM/HpnD, (B) CrtI/CrtH/Z-ISO/CrtISO, (C) CrtYc/d, and (D) Blh. Values indicate the results of the SH-aLRT and UF of 1,000 replicates, respectively. For complete trees see supplementary figures S4–S6 and S8, Supplementary Material online. Scale bars indicate the inferred number of amino acid substitutions per site.
