Figure 6.

Alignment of eukaryote SNORD43 with archaeal sR12 sequences from Pyrococcus and Sulfolobus indicates detectable sequence similarity, suggestive of common ancestry. The alignment does not yield a conserved secondary structure, and therefore the possibility of convergence cannot be ruled out.

Hoeppner and Poole BMC Evolutionary Biology 2012 12:183   doi:10.1186/1471-2148-12-183
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