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Principal Coordinate Analysis (PCA) ordination of the OTU dissimilarity-based index (Bray-Curtis) of β-diversity in cecal and fecal DNA of rats from Lean and Obese groups at Phylum (A), Family (B), Genus (C), and operational taxonomic unit (OTU) level (D). Statistical significance was determined by using PERMANOVA by comparing the true F statistic to randomly permuted F statistics defaulted to 500 permutations.
