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Fig. 1 | BMC Genomics

Fig. 1

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

Fig. 1

Phenotypic differences in the production of mycosporine-like amino acids of two divergent Symbiodinium species. a. Phylogenetic positions of the Symbiodinium species analyzed, SymA (green) and SymC (red). A phylogenetic tree was constructed using the Maximum-Likelihood method, based on 28S rDNA sequences [12]. The scale bar shows 0.2 changes per site. b. Zoospore of SymA. Scale bar, 5 μm. c. Zoospore of SymC. A short, transverse flagellum originating from the cingulum and a long longitudinal flagellum originating from the sulcus, are observed in zoospores (arrows). d. High-performance liquid chromatography (HPLC) comparison of aqueous extracts prepared from SymA (black) and SymC (pink) detected at 330 nm. The largest difference between SymA and SymC is seen in peaks with a retention time of ~ 4.5 min (arrow). The large peak in SymA is not detected in SymC. e. High-resolution mass spectrum of isolated Porphyra-334 (MH+ 347.1456, C14H23N2O8, Δ 0.74 mmu), showing the production of mycosporine-like amino acid (MAAs) by SymA (arrow). Inset shows the chemical formula of Porphyra-334

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