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Fig. 3 | BMC Genomics

Fig. 3

From: Two divergent Symbiodinium genomes reveal conservation of a gene cluster for sunscreen biosynthesis and recently lost genes

Fig. 3

The nuclear genome of the earliest-branching Symbiodinium (SymA) harbors a gene cluster to produce MAAs. a. Molecular phylogenetic analysis of dimethyl 4-deoxygadusol (DDG) synthase by maximum likelihood. Numbers denote bootstrap values (WAG+G model and RAxML) and posterior probabilities (MrBayes). nd: “not determined” by a different topology. DDG genes of Symbiodinium are clustered with other dinoflagellate proteins from Karlodinium veneficum and Heterocapsa triquetra. In addition, dinoflagellate proteins are phylogenetically close to those of anthozoans. b. Potential evolutionary relationships between MAA gene clusters in cyanobacteria and those of eukaryotes with DDG synthase are shown. Deep evolutionary conservation of the bacterial-like gene cluster is suggested in SymA. On the other hand, genes within the cluster have been lost in the crown lineage (red box). The topology of the tree is based on phylogenetic analysis of DDG synthase

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BMC Genomics

ISSN: 1471-2164

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