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. Author manuscript; available in PMC: 2013 Jan 27.
Published in final edited form as: J Nat Prod. 2011 Dec 12;75(1):60–66. doi: 10.1021/np200611f

Figure 2.

Figure 2

Evolutionary tree of the credneramide-producing strain PNG-05/19/05-13. The phylogenetic proximity with the genus Trichodesmium (reference/type-strains = Trichodesmium erythraeum IMS) suggests that this strain represents a new taxa within this genus, which would also include the related and morphologically-similar strains PAL08-3.2 (GenBank acc. Nr. HM585025) and NAC8-50 (GenBank acc. Nr. GU724203) previously putatively identified as cf. Oscillatoria sp. Representative reference-strains obtained from Bergey’s Manual are highlighted with asterisks (*) and the sensu stricto for the genera Trichodesmium and Oscillatoria are highlighted with green boxes. In addition to the strain PNG-05/19/05-13, credneric acid (3) was also isolated from the Panamanian strain cf. Oscillatoria sp. PAC-17-FEB-10-3 (both credneric acid-producing strains are highlighted with red arrows). The cladogram is based on SSU (16S) rRNA gene sequences using the bayesian (MrBayes) method and the support values are indicated as posterior probability at the nodes. The specimens are indicated as species, strain, and access number in brackets. The scale bar is indicated at 0.04 expected nucleotide substitutions per site.