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Dinophyceae phylogenetic tree of 18S rDNA sequences obtained from clones (squares), SAGs (stars and bold) and their closest relatives in GenBank (closed circles) using (a) 528f/EukB and (b) Euk1A/516r primer pairs. Stars at nodes indicate bootstrap values >70%. Asterisks (*) indicate single cells lysed by KOH, all others were lysed using Lyse-N-Go.
