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Molecular signatures of the nuclear SSU (A) and LSU (B) rRNA differentiating the genus Spumella from other non-photosynthetic chrysophytes. The secondary structure was constructed based on the genus Spumella. The nomenclature of nucleotides and base pairs depends on the polarity of the DNA: increasing numbers generally indicate the 5′–3′ direction. [] indicates the beginning and end of the stem, with {} indicating non-binding (loops, bulges) of the base pairs.
