3.3 CAB Beta diversity
A consensus phylogram of the five copepod genera was constructed (Figure 2a) and compared with the Unweighted UniFrac distance matrix of CAB using PCoA plot. In the present study, from the beta-diversity (PERMANOVA P-value 0.001) patterns, phylogenetically closer Pleuromamma spp. andCalanus spp. harbour CAB had expressed a mere 7.604 % (axis 1) dissimilarity (Figure 2b); however, the CAB composition still varied between and within copepod genera. As we closely investigate, Unweighted Unifrac distance matrix showed the CAB of Pleuromamma spp. andCalanus spp. separated into two different clusters (Figure 2b, c), whereas, the CAB of Calanus spp. was clustered into a single large cluster in a weighted distance matrix (Figure 2c). In addition to this, in Jaccard distance matrix PCoA revealed that Calanus spp. had three distinct CAB clusters (Figure 2d).
On the other hand, the CAB of the phylogenetically closerCentropages sp. and Temora spp. did show some clustering pattern, but not so distinctive (Figure 2b).