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. 2008 Nov 14;75(1):54–63. doi: 10.1128/AEM.00818-08

FIG. 4.

FIG. 4.

Maximum parsimony analysis of the LSU rDNA for all species listed in Tables 1 and 4. Bootstrap values (1,000 replicates) are listed as percentages of 100, and only values greater than 50% are shown. Symbiodinium microadriaticum (GenBank accession number AF060896) was the outgroup. Cultures of Lingulodinium polyedrum, Protoceratium reticulatum, and Gonyaulax spinifera in bold are toxic, and cultures of Lingulodinium polyedrum and Gonyaulax spinifera in italics are nontoxic. Cultures of Protoceratium reticulatum for which there are conflicting studies on toxicity are indicated with double asterisks (**) after the name. The toxicity is unknown for all of the YTX-producing species in the regular font.