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Pyrosequencing of Bacterial Symbionts within Axinella corrugata Sponges: Diversity and Seasonal Variability

Figure 4

Unsupervised cluster analysis of taxonomic assignments using CloVR.

The assignments are either at the class (A) or order (B) levels. Values in the heatmap reflect the log of the relative abundance within each sample (e.g. -1 ∼ 10%, -2 ∼ 1%). We observe that Amphimedon is consistently an outlier relative to the other samples, in part due to a lack of Deltaproteobacteria species and Nitrospira and a larger abundance of Betaproteobacteria, Bacilli, and Bacteroidetes.

Figure 4