Additional file 1.

Blast result table. BLASTn results from previously published Solenogastres sequences using strings within regions of strong secondary structure (helices 1-3; see figure 1a). The short fragments of Epimenia babai 18S lie outside of helix regions and do not contain alien DNA. For the two published helix regions of Epimenia sp., the query results in Cnidaria (27 matches within Octocorallia). In all Helicoradomenia fragments the 18S of the polychaete Amphisamytha galapagensis was found within the six best BLASTn hits (excluding Helicoradomenia; mean = 3), while the first hit for Mollusca was on rank 16 (mean = 35).

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Meyer et al. BMC Evolutionary Biology 2010 10:70   doi:10.1186/1471-2148-10-70